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2010-11-23 Tobias Burnus <burnus@net-b.de>
[official-gcc.git] / gcc / mips-tfile.c
blob1475e9599db122e3f06cd1b4c986de5d2e866f96
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
6 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
7 Free Software Foundation, Inc.
8 Contributed by Michael Meissner (meissner@cygnus.com).
9
10 This file is part of GCC.
11
12 GCC is free software; you can redistribute it and/or modify it under
13 the terms of the GNU General Public License as published by the Free
14 Software Foundation; either version 3, or (at your option) any later
15 version.
16
17 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
18 WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with GCC; see the file COPYING3. If not see
24 <http://www.gnu.org/licenses/>. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indices are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "coretypes.h"
606 #include "tm.h"
607 #include "version.h"
608 #include "intl.h"
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 /* Include getopt.h for the sake of getopt_long. */
615 #include "getopt.h"
616
617 #ifndef __LINE__
618 #define __LINE__ 0
619 #endif
620
621 /* Due to size_t being defined in sys/types.h and different
622 in stddef.h, we have to do this by hand..... Note, these
623 types are correct for MIPS based systems, and may not be
624 correct for other systems. Ultrix 4.0 and Silicon Graphics
625 have this fixed, but since the following is correct, and
626 the fact that including stddef.h gets you GCC's version
627 instead of the standard one it's not worth it to fix it. */
628
629 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
630 #define Size_t long unsigned int
631 #else
632 #define Size_t unsigned int
633 #endif
634 #define Ptrdiff_t long
635
636 /* The following might be called from obstack or malloc,
637 so they can't be static. */
638
639 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
640 extern void botch (const char *) ATTRIBUTE_NORETURN;
641
642 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
643 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
644 \f
645 #ifndef MIPS_DEBUGGING_INFO
646
647 static int line_number;
648 static int cur_line_start;
649 static int debug;
650 static int had_errors;
651 static const char *progname;
652 static const char *input_name;
653
654 int
655 main (void)
656 {
657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
658 exit (1);
659 }
660
661 #else /* MIPS_DEBUGGING defined */
662 \f
663 /* The local and global symbols have a field index, so undo any defines
664 of index -> strchr. */
665
666 #undef index
667
668 #include <signal.h>
669
670 #ifndef CROSS_DIRECTORY_STRUCTURE
671 #include <a.out.h>
672 #else
673 #include "mips/a.out.h"
674 #endif /* CROSS_DIRECTORY_STRUCTURE */
675
676 #include "gstab.h"
677
678 #ifndef MALLOC_CHECK
679 #ifdef __SABER__
680 #define MALLOC_CHECK
681 #endif
682 #endif
683
684 #define IS_ASM_IDENT(ch) \
685 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
686
687 \f
688 /* Redefinition of storage classes as an enumeration for better
689 debugging. */
690
691 typedef enum sc {
692 sc_Nil = scNil, /* no storage class */
693 sc_Text = scText, /* text symbol */
694 sc_Data = scData, /* initialized data symbol */
695 sc_Bss = scBss, /* un-initialized data symbol */
696 sc_Register = scRegister, /* value of symbol is register number */
697 sc_Abs = scAbs, /* value of symbol is absolute */
698 sc_Undefined = scUndefined, /* who knows? */
699 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
700 sc_Bits = scBits, /* this is a bit field */
701 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
702 sc_RegImage = scRegImage, /* register value saved on stack */
703 sc_Info = scInfo, /* symbol contains debugger information */
704 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
705 sc_SData = scSData, /* load time only small data */
706 sc_SBss = scSBss, /* load time only small common */
707 sc_RData = scRData, /* load time only read only data */
708 sc_Var = scVar, /* Var parameter (fortran,pascal) */
709 sc_Common = scCommon, /* common variable */
710 sc_SCommon = scSCommon, /* small common */
711 sc_VarRegister = scVarRegister, /* Var parameter in a register */
712 sc_Variant = scVariant, /* Variant record */
713 sc_SUndefined = scSUndefined, /* small undefined(external) data */
714 sc_Init = scInit, /* .init section symbol */
715 sc_Max = scMax /* Max storage class+1 */
716 } sc_t;
717
718 /* Redefinition of symbol type. */
719
720 typedef enum st {
721 st_Nil = stNil, /* Nuthin' special */
722 st_Global = stGlobal, /* external symbol */
723 st_Static = stStatic, /* static */
724 st_Param = stParam, /* procedure argument */
725 st_Local = stLocal, /* local variable */
726 st_Label = stLabel, /* label */
727 st_Proc = stProc, /* " " Procedure */
728 st_Block = stBlock, /* beginning of block */
729 st_End = stEnd, /* end (of anything) */
730 st_Member = stMember, /* member (of anything - struct/union/enum */
731 st_Typedef = stTypedef, /* type definition */
732 st_File = stFile, /* file name */
733 st_RegReloc = stRegReloc, /* register relocation */
734 st_Forward = stForward, /* forwarding address */
735 st_StaticProc = stStaticProc, /* load time only static procs */
736 st_Constant = stConstant, /* const */
737 st_Str = stStr, /* string */
738 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */
739 st_Expr = stExpr, /* 2+2 vs. 4 */
740 st_Type = stType, /* post-coercion SER */
741 st_Max = stMax /* max type+1 */
742 } st_t;
743
744 /* Redefinition of type qualifiers. */
745
746 typedef enum tq {
747 tq_Nil = tqNil, /* bt is what you see */
748 tq_Ptr = tqPtr, /* pointer */
749 tq_Proc = tqProc, /* procedure */
750 tq_Array = tqArray, /* duh */
751 tq_Far = tqFar, /* longer addressing - 8086/8 land */
752 tq_Vol = tqVol, /* volatile */
753 tq_Max = tqMax /* Max type qualifier+1 */
754 } tq_t;
755
756 /* Redefinition of basic types. */
757
758 typedef enum bt {
759 bt_Nil = btNil, /* undefined */
760 bt_Adr = btAdr, /* address - integer same size as pointer */
761 bt_Char = btChar, /* character */
762 bt_UChar = btUChar, /* unsigned character */
763 bt_Short = btShort, /* short */
764 bt_UShort = btUShort, /* unsigned short */
765 bt_Int = btInt, /* int */
766 bt_UInt = btUInt, /* unsigned int */
767 bt_Long = btLong, /* long */
768 bt_ULong = btULong, /* unsigned long */
769 bt_Float = btFloat, /* float (real) */
770 bt_Double = btDouble, /* Double (real) */
771 bt_Struct = btStruct, /* Structure (Record) */
772 bt_Union = btUnion, /* Union (variant) */
773 bt_Enum = btEnum, /* Enumerated */
774 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
775 bt_Range = btRange, /* subrange of int */
776 bt_Set = btSet, /* pascal sets */
777 bt_Complex = btComplex, /* fortran complex */
778 bt_DComplex = btDComplex, /* fortran double complex */
779 bt_Indirect = btIndirect, /* forward or unnamed typedef */
780 bt_FixedDec = btFixedDec, /* Fixed Decimal */
781 bt_FloatDec = btFloatDec, /* Float Decimal */
782 bt_String = btString, /* Varying Length Character String */
783 bt_Bit = btBit, /* Aligned Bit String */
784 bt_Picture = btPicture, /* Picture */
785
786 #ifdef btVoid
787 bt_Void = btVoid, /* Void */
788 #else
789 #define bt_Void bt_Nil
790 #endif
791
792 bt_Max = btMax /* Max basic type+1 */
793 } bt_t;
794
795 \f
796
797 /* Basic COFF storage classes. */
798 enum coff_storage {
799 C_EFCN = -1,
800 C_NULL = 0,
801 C_AUTO = 1,
802 C_EXT = 2,
803 C_STAT = 3,
804 C_REG = 4,
805 C_EXTDEF = 5,
806 C_LABEL = 6,
807 C_ULABEL = 7,
808 C_MOS = 8,
809 C_ARG = 9,
810 C_STRTAG = 10,
811 C_MOU = 11,
812 C_UNTAG = 12,
813 C_TPDEF = 13,
814 C_USTATIC = 14,
815 C_ENTAG = 15,
816 C_MOE = 16,
817 C_REGPARM = 17,
818 C_FIELD = 18,
819 C_BLOCK = 100,
820 C_FCN = 101,
821 C_EOS = 102,
822 C_FILE = 103,
823 C_LINE = 104,
824 C_ALIAS = 105,
825 C_HIDDEN = 106,
826 C_MAX = 107
827 } coff_storage_t;
828
829 /* Regular COFF fundamental type. */
830 typedef enum coff_type {
831 T_NULL = 0,
832 T_ARG = 1,
833 T_CHAR = 2,
834 T_SHORT = 3,
835 T_INT = 4,
836 T_LONG = 5,
837 T_FLOAT = 6,
838 T_DOUBLE = 7,
839 T_STRUCT = 8,
840 T_UNION = 9,
841 T_ENUM = 10,
842 T_MOE = 11,
843 T_UCHAR = 12,
844 T_USHORT = 13,
845 T_UINT = 14,
846 T_ULONG = 15,
847 T_MAX = 16
848 } coff_type_t;
849
850 /* Regular COFF derived types. */
851 typedef enum coff_dt {
852 DT_NON = 0,
853 DT_PTR = 1,
854 DT_FCN = 2,
855 DT_ARY = 3,
856 DT_MAX = 4
857 } coff_dt_t;
858
859 #define N_BTMASK 017 /* bitmask to isolate basic type */
860 #define N_TMASK 003 /* bitmask to isolate derived type */
861 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
862 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
863 #define N_TQ 6 /* # of type qualifiers */
864
865 /* States for whether to hash type or not. */
866 typedef enum hash_state {
867 hash_no = 0, /* don't hash type */
868 hash_yes = 1, /* ok to hash type, or use previous hash */
869 hash_record = 2 /* ok to record hash, but don't use prev. */
870 } hash_state_t;
871
872
873 /* Types of different sized allocation requests. */
874 enum alloc_type {
875 alloc_type_none, /* dummy value */
876 alloc_type_scope, /* nested scopes linked list */
877 alloc_type_vlinks, /* glue linking pages in varray */
878 alloc_type_shash, /* string hash element */
879 alloc_type_thash, /* type hash element */
880 alloc_type_tag, /* struct/union/tag element */
881 alloc_type_forward, /* element to hold unknown tag */
882 alloc_type_thead, /* head of type hash list */
883 alloc_type_varray, /* general varray allocation */
884 alloc_type_last /* last+1 element for array bounds */
885 };
886
887 \f
888 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
889 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
890
891
892 /* Structures to provide n-number of virtual arrays, each of which can
893 grow linearly, and which are written in the object file as sequential
894 pages. On systems with a BSD malloc that define USE_MALLOC, the
895 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
896 adds its overhead, and rounds up to the next power of 2. Pages are
897 linked together via a linked list. */
898
899 #ifndef PAGE_SIZE
900 #define PAGE_SIZE 32768 /* size of varray pages */
901 #endif
902
903 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
904
905
906 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
907 #ifndef USE_MALLOC /* in one memory request */
908 #define MAX_CLUSTER_PAGES 64
909 #else
910 #define MAX_CLUSTER_PAGES 63
911 #endif
912 #endif
913
914
915 /* Linked list connecting separate page allocations. */
916 typedef struct vlinks {
917 struct vlinks *prev; /* previous set of pages */
918 struct vlinks *next; /* next set of pages */
919 union page *datum; /* start of page */
920 unsigned long start_index; /* starting index # of page */
921 } vlinks_t;
922
923
924 /* Virtual array header. */
925 typedef struct varray {
926 vlinks_t *first; /* first page link */
927 vlinks_t *last; /* last page link */
928 unsigned long num_allocated; /* # objects allocated */
929 unsigned short object_size; /* size in bytes of each object */
930 unsigned short objects_per_page; /* # objects that can fit on a page */
931 unsigned short objects_last_page; /* # objects allocated on last page */
932 } varray_t;
933
934 #ifndef MALLOC_CHECK
935 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
936 #else
937 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
938 #endif
939
940 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
941 (vlinks_t *) 0, /* first */ \
942 (vlinks_t *) 0, /* last */ \
943 0, /* num_allocated */ \
944 sizeof (type), /* object_size */ \
945 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
946 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
947 }
948
949 #define INITIALIZE_VARRAY(x,type) \
950 do { \
951 (x)->object_size = sizeof (type); \
952 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
953 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
954 } while (0)
955
956 /* Master type for indexes within the symbol table. */
957 typedef unsigned long symint_t;
958
959
960 /* Linked list support for nested scopes (file, block, structure, etc.). */
961 typedef struct scope {
962 struct scope *prev; /* previous scope level */
963 struct scope *free; /* free list pointer */
964 SYMR *lsym; /* pointer to local symbol node */
965 symint_t lnumber; /* lsym index */
966 st_t type; /* type of the node */
967 } scope_t;
968
969
970 /* Forward reference list for tags referenced, but not yet defined. */
971 typedef struct forward {
972 struct forward *next; /* next forward reference */
973 struct forward *free; /* free list pointer */
974 AUXU *ifd_ptr; /* pointer to store file index */
975 AUXU *index_ptr; /* pointer to store symbol index */
976 AUXU *type_ptr; /* pointer to munge type info */
977 } forward_t;
978
979
980 /* Linked list support for tags. The first tag in the list is always
981 the current tag for that block. */
982 typedef struct tag {
983 struct tag *free; /* free list pointer */
984 struct shash *hash_ptr; /* pointer to the hash table head */
985 struct tag *same_name; /* tag with same name in outer scope */
986 struct tag *same_block; /* next tag defined in the same block. */
987 struct forward *forward_ref; /* list of forward references */
988 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
989 symint_t ifd; /* file # tag defined in */
990 symint_t indx; /* index within file's local symbols */
991 } tag_t;
992
993
994 /* Head of a block's linked list of tags. */
995 typedef struct thead {
996 struct thead *prev; /* previous block */
997 struct thead *free; /* free list pointer */
998 struct tag *first_tag; /* first tag in block defined */
999 } thead_t;
1000
1001
1002 /* Union containing pointers to each the small structures which are freed up. */
1003 typedef union small_free {
1004 scope_t *f_scope; /* scope structure */
1005 thead_t *f_thead; /* tag head structure */
1006 tag_t *f_tag; /* tag element structure */
1007 forward_t *f_forward; /* forward tag reference */
1008 } small_free_t;
1009
1010
1011 /* String hash table support. The size of the hash table must fit
1012 within a page. */
1013
1014 #ifndef SHASH_SIZE
1015 #define SHASH_SIZE 1009
1016 #endif
1017
1018 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1019
1020 typedef struct shash {
1021 struct shash *next; /* next hash value */
1022 char *string; /* string we are hashing */
1023 symint_t len; /* string length */
1024 symint_t indx; /* index within string table */
1025 EXTR *esym_ptr; /* global symbol pointer */
1026 SYMR *sym_ptr; /* local symbol pointer */
1027 SYMR *end_ptr; /* symbol pointer to end block */
1028 tag_t *tag_ptr; /* tag pointer */
1029 PDR *proc_ptr; /* procedure descriptor pointer */
1030 } shash_t;
1031
1032
1033 /* Type hash table support. The size of the hash table must fit
1034 within a page with the other extended file descriptor information.
1035 Because unique types which are hashed are fewer in number than
1036 strings, we use a smaller hash value. */
1037
1038 #ifndef THASH_SIZE
1039 #define THASH_SIZE 113
1040 #endif
1041
1042 typedef struct thash {
1043 struct thash *next; /* next hash value */
1044 AUXU type; /* type we are hashing */
1045 symint_t indx; /* index within string table */
1046 } thash_t;
1047
1048
1049 /* Extended file descriptor that contains all of the support necessary
1050 to add things to each file separately. */
1051 typedef struct efdr {
1052 FDR fdr; /* File header to be written out */
1053 FDR *orig_fdr; /* original file header */
1054 char *name; /* filename */
1055 int name_len; /* length of the filename */
1056 symint_t void_type; /* aux. pointer to 'void' type */
1057 symint_t int_type; /* aux. pointer to 'int' type */
1058 scope_t *cur_scope; /* current nested scopes */
1059 symint_t file_index; /* current file number */
1060 int nested_scopes; /* # nested scopes */
1061 varray_t strings; /* local strings */
1062 varray_t symbols; /* local symbols */
1063 varray_t procs; /* procedures */
1064 varray_t aux_syms; /* auxiliary symbols */
1065 struct efdr *next_file; /* next file descriptor */
1066 /* string/type hash tables */
1067 shash_t **shash_head; /* string hash table */
1068 thash_t *thash_head[THASH_SIZE];
1069 } efdr_t;
1070
1071 /* Pre-initialized extended file structure. */
1072 static int init_file_initialized = 0;
1073 static efdr_t init_file;
1074
1075 static efdr_t *first_file; /* first file descriptor */
1076 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1077
1078
1079 /* Union of various things that are held in pages. */
1080 typedef union page {
1081 char byte [ PAGE_SIZE ];
1082 unsigned char ubyte [ PAGE_SIZE ];
1083 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1084 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1085 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1086 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1087 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1088 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1089 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1090 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1091 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1092 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1093 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1094 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1095 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1096 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1097 } page_t;
1098
1099
1100 /* Structure holding allocation information for small sized structures. */
1101 typedef struct alloc_info {
1102 const char *alloc_name; /* name of this allocation type (must be first) */
1103 page_t *cur_page; /* current page being allocated from */
1104 small_free_t free_list; /* current free list if any */
1105 int unallocated; /* number of elements unallocated on page */
1106 int total_alloc; /* total number of allocations */
1107 int total_free; /* total number of frees */
1108 int total_pages; /* total number of pages allocated */
1109 } alloc_info_t;
1110
1111 /* Type information collected together. */
1112 typedef struct type_info {
1113 bt_t basic_type; /* basic type */
1114 coff_type_t orig_type; /* original COFF-based type */
1115 int num_tq; /* # type qualifiers */
1116 int num_dims; /* # dimensions */
1117 int num_sizes; /* # sizes */
1118 int extra_sizes; /* # extra sizes not tied with dims */
1119 tag_t * tag_ptr; /* tag pointer */
1120 int bitfield; /* symbol is a bitfield */
1121 int unknown_tag; /* this is an unknown tag */
1122 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1123 symint_t dimensions [N_TQ]; /* dimensions for each array */
1124 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1125 struct/union/enum + bitfield size */
1126 } type_info_t;
1127
1128 /* Pre-initialized type_info struct. */
1129 static type_info_t type_info_init = {
1130 bt_Nil, /* basic type */
1131 T_NULL, /* original COFF-based type */
1132 0, /* # type qualifiers */
1133 0, /* # dimensions */
1134 0, /* # sizes */
1135 0, /* sizes not tied with dims */
1136 NULL, /* ptr to tag */
1137 0, /* bitfield */
1138 0, /* unknown tag */
1139 { /* type qualifiers */
1140 tq_Nil,
1141 tq_Nil,
1142 tq_Nil,
1143 tq_Nil,
1144 tq_Nil,
1145 tq_Nil,
1146 },
1147 { /* dimensions */
1148 0,
1149 0,
1150 0,
1151 0,
1152 0,
1153 0
1154 },
1155 { /* sizes */
1156 0,
1157 0,
1158 0,
1159 0,
1160 0,
1161 0,
1162 0,
1163 0,
1164 },
1165 };
1166
1167
1168 /* Global virtual arrays & hash table for external strings as well as
1169 for the tags table and global tables for file descriptors, and
1170 dense numbers. */
1171
1172 static varray_t file_desc = INIT_VARRAY (efdr_t);
1173 static varray_t dense_num = INIT_VARRAY (DNR);
1174 static varray_t tag_strings = INIT_VARRAY (char);
1175 static varray_t ext_strings = INIT_VARRAY (char);
1176 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1177
1178 static shash_t *orig_str_hash[SHASH_SIZE];
1179 static shash_t *ext_str_hash [SHASH_SIZE];
1180 static shash_t *tag_hash [SHASH_SIZE];
1181
1182 /* Static types for int and void. Also, remember the last function's
1183 type (which is set up when we encounter the declaration for the
1184 function, and used when the end block for the function is emitted. */
1185
1186 static type_info_t int_type_info;
1187 static type_info_t void_type_info;
1188 static type_info_t last_func_type_info;
1189 static EXTR *last_func_eptr;
1190
1191
1192 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1193 really should use bt_Void, but this causes the current ecoff GDB to
1194 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1195 2.0) doesn't understand it, even though the compiler generates it.
1196 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1197 suite, but for now go with what works. */
1198
1199 static const bt_t map_coff_types[ (int) T_MAX ] = {
1200 bt_Nil, /* T_NULL */
1201 bt_Nil, /* T_ARG */
1202 bt_Char, /* T_CHAR */
1203 bt_Short, /* T_SHORT */
1204 bt_Int, /* T_INT */
1205 bt_Long, /* T_LONG */
1206 bt_Float, /* T_FLOAT */
1207 bt_Double, /* T_DOUBLE */
1208 bt_Struct, /* T_STRUCT */
1209 bt_Union, /* T_UNION */
1210 bt_Enum, /* T_ENUM */
1211 bt_Enum, /* T_MOE */
1212 bt_UChar, /* T_UCHAR */
1213 bt_UShort, /* T_USHORT */
1214 bt_UInt, /* T_UINT */
1215 bt_ULong /* T_ULONG */
1216 };
1217
1218 /* Convert COFF storage class to ECOFF storage class. */
1219 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1220 sc_Nil, /* 0: C_NULL */
1221 sc_Abs, /* 1: C_AUTO auto var */
1222 sc_Undefined, /* 2: C_EXT external */
1223 sc_Data, /* 3: C_STAT static */
1224 sc_Register, /* 4: C_REG register */
1225 sc_Undefined, /* 5: C_EXTDEF ??? */
1226 sc_Text, /* 6: C_LABEL label */
1227 sc_Text, /* 7: C_ULABEL user label */
1228 sc_Info, /* 8: C_MOS member of struct */
1229 sc_Abs, /* 9: C_ARG argument */
1230 sc_Info, /* 10: C_STRTAG struct tag */
1231 sc_Info, /* 11: C_MOU member of union */
1232 sc_Info, /* 12: C_UNTAG union tag */
1233 sc_Info, /* 13: C_TPDEF typedef */
1234 sc_Data, /* 14: C_USTATIC ??? */
1235 sc_Info, /* 15: C_ENTAG enum tag */
1236 sc_Info, /* 16: C_MOE member of enum */
1237 sc_Register, /* 17: C_REGPARM register parameter */
1238 sc_Bits, /* 18; C_FIELD bitfield */
1239 sc_Nil, /* 19 */
1240 sc_Nil, /* 20 */
1241 sc_Nil, /* 21 */
1242 sc_Nil, /* 22 */
1243 sc_Nil, /* 23 */
1244 sc_Nil, /* 24 */
1245 sc_Nil, /* 25 */
1246 sc_Nil, /* 26 */
1247 sc_Nil, /* 27 */
1248 sc_Nil, /* 28 */
1249 sc_Nil, /* 29 */
1250 sc_Nil, /* 30 */
1251 sc_Nil, /* 31 */
1252 sc_Nil, /* 32 */
1253 sc_Nil, /* 33 */
1254 sc_Nil, /* 34 */
1255 sc_Nil, /* 35 */
1256 sc_Nil, /* 36 */
1257 sc_Nil, /* 37 */
1258 sc_Nil, /* 38 */
1259 sc_Nil, /* 39 */
1260 sc_Nil, /* 40 */
1261 sc_Nil, /* 41 */
1262 sc_Nil, /* 42 */
1263 sc_Nil, /* 43 */
1264 sc_Nil, /* 44 */
1265 sc_Nil, /* 45 */
1266 sc_Nil, /* 46 */
1267 sc_Nil, /* 47 */
1268 sc_Nil, /* 48 */
1269 sc_Nil, /* 49 */
1270 sc_Nil, /* 50 */
1271 sc_Nil, /* 51 */
1272 sc_Nil, /* 52 */
1273 sc_Nil, /* 53 */
1274 sc_Nil, /* 54 */
1275 sc_Nil, /* 55 */
1276 sc_Nil, /* 56 */
1277 sc_Nil, /* 57 */
1278 sc_Nil, /* 58 */
1279 sc_Nil, /* 59 */
1280 sc_Nil, /* 60 */
1281 sc_Nil, /* 61 */
1282 sc_Nil, /* 62 */
1283 sc_Nil, /* 63 */
1284 sc_Nil, /* 64 */
1285 sc_Nil, /* 65 */
1286 sc_Nil, /* 66 */
1287 sc_Nil, /* 67 */
1288 sc_Nil, /* 68 */
1289 sc_Nil, /* 69 */
1290 sc_Nil, /* 70 */
1291 sc_Nil, /* 71 */
1292 sc_Nil, /* 72 */
1293 sc_Nil, /* 73 */
1294 sc_Nil, /* 74 */
1295 sc_Nil, /* 75 */
1296 sc_Nil, /* 76 */
1297 sc_Nil, /* 77 */
1298 sc_Nil, /* 78 */
1299 sc_Nil, /* 79 */
1300 sc_Nil, /* 80 */
1301 sc_Nil, /* 81 */
1302 sc_Nil, /* 82 */
1303 sc_Nil, /* 83 */
1304 sc_Nil, /* 84 */
1305 sc_Nil, /* 85 */
1306 sc_Nil, /* 86 */
1307 sc_Nil, /* 87 */
1308 sc_Nil, /* 88 */
1309 sc_Nil, /* 89 */
1310 sc_Nil, /* 90 */
1311 sc_Nil, /* 91 */
1312 sc_Nil, /* 92 */
1313 sc_Nil, /* 93 */
1314 sc_Nil, /* 94 */
1315 sc_Nil, /* 95 */
1316 sc_Nil, /* 96 */
1317 sc_Nil, /* 97 */
1318 sc_Nil, /* 98 */
1319 sc_Nil, /* 99 */
1320 sc_Text, /* 100: C_BLOCK block start/end */
1321 sc_Text, /* 101: C_FCN function start/end */
1322 sc_Info, /* 102: C_EOS end of struct/union/enum */
1323 sc_Nil, /* 103: C_FILE file start */
1324 sc_Nil, /* 104: C_LINE line number */
1325 sc_Nil, /* 105: C_ALIAS combined type info */
1326 sc_Nil, /* 106: C_HIDDEN ??? */
1327 };
1328
1329 /* Convert COFF storage class to ECOFF symbol type. */
1330 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1331 st_Nil, /* 0: C_NULL */
1332 st_Local, /* 1: C_AUTO auto var */
1333 st_Global, /* 2: C_EXT external */
1334 st_Static, /* 3: C_STAT static */
1335 st_Local, /* 4: C_REG register */
1336 st_Global, /* 5: C_EXTDEF ??? */
1337 st_Label, /* 6: C_LABEL label */
1338 st_Label, /* 7: C_ULABEL user label */
1339 st_Member, /* 8: C_MOS member of struct */
1340 st_Param, /* 9: C_ARG argument */
1341 st_Block, /* 10: C_STRTAG struct tag */
1342 st_Member, /* 11: C_MOU member of union */
1343 st_Block, /* 12: C_UNTAG union tag */
1344 st_Typedef, /* 13: C_TPDEF typedef */
1345 st_Static, /* 14: C_USTATIC ??? */
1346 st_Block, /* 15: C_ENTAG enum tag */
1347 st_Member, /* 16: C_MOE member of enum */
1348 st_Param, /* 17: C_REGPARM register parameter */
1349 st_Member, /* 18; C_FIELD bitfield */
1350 st_Nil, /* 19 */
1351 st_Nil, /* 20 */
1352 st_Nil, /* 21 */
1353 st_Nil, /* 22 */
1354 st_Nil, /* 23 */
1355 st_Nil, /* 24 */
1356 st_Nil, /* 25 */
1357 st_Nil, /* 26 */
1358 st_Nil, /* 27 */
1359 st_Nil, /* 28 */
1360 st_Nil, /* 29 */
1361 st_Nil, /* 30 */
1362 st_Nil, /* 31 */
1363 st_Nil, /* 32 */
1364 st_Nil, /* 33 */
1365 st_Nil, /* 34 */
1366 st_Nil, /* 35 */
1367 st_Nil, /* 36 */
1368 st_Nil, /* 37 */
1369 st_Nil, /* 38 */
1370 st_Nil, /* 39 */
1371 st_Nil, /* 40 */
1372 st_Nil, /* 41 */
1373 st_Nil, /* 42 */
1374 st_Nil, /* 43 */
1375 st_Nil, /* 44 */
1376 st_Nil, /* 45 */
1377 st_Nil, /* 46 */
1378 st_Nil, /* 47 */
1379 st_Nil, /* 48 */
1380 st_Nil, /* 49 */
1381 st_Nil, /* 50 */
1382 st_Nil, /* 51 */
1383 st_Nil, /* 52 */
1384 st_Nil, /* 53 */
1385 st_Nil, /* 54 */
1386 st_Nil, /* 55 */
1387 st_Nil, /* 56 */
1388 st_Nil, /* 57 */
1389 st_Nil, /* 58 */
1390 st_Nil, /* 59 */
1391 st_Nil, /* 60 */
1392 st_Nil, /* 61 */
1393 st_Nil, /* 62 */
1394 st_Nil, /* 63 */
1395 st_Nil, /* 64 */
1396 st_Nil, /* 65 */
1397 st_Nil, /* 66 */
1398 st_Nil, /* 67 */
1399 st_Nil, /* 68 */
1400 st_Nil, /* 69 */
1401 st_Nil, /* 70 */
1402 st_Nil, /* 71 */
1403 st_Nil, /* 72 */
1404 st_Nil, /* 73 */
1405 st_Nil, /* 74 */
1406 st_Nil, /* 75 */
1407 st_Nil, /* 76 */
1408 st_Nil, /* 77 */
1409 st_Nil, /* 78 */
1410 st_Nil, /* 79 */
1411 st_Nil, /* 80 */
1412 st_Nil, /* 81 */
1413 st_Nil, /* 82 */
1414 st_Nil, /* 83 */
1415 st_Nil, /* 84 */
1416 st_Nil, /* 85 */
1417 st_Nil, /* 86 */
1418 st_Nil, /* 87 */
1419 st_Nil, /* 88 */
1420 st_Nil, /* 89 */
1421 st_Nil, /* 90 */
1422 st_Nil, /* 91 */
1423 st_Nil, /* 92 */
1424 st_Nil, /* 93 */
1425 st_Nil, /* 94 */
1426 st_Nil, /* 95 */
1427 st_Nil, /* 96 */
1428 st_Nil, /* 97 */
1429 st_Nil, /* 98 */
1430 st_Nil, /* 99 */
1431 st_Block, /* 100: C_BLOCK block start/end */
1432 st_Proc, /* 101: C_FCN function start/end */
1433 st_End, /* 102: C_EOS end of struct/union/enum */
1434 st_File, /* 103: C_FILE file start */
1435 st_Nil, /* 104: C_LINE line number */
1436 st_Nil, /* 105: C_ALIAS combined type info */
1437 st_Nil, /* 106: C_HIDDEN ??? */
1438 };
1439
1440 /* Map COFF derived types to ECOFF type qualifiers. */
1441 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1442 tq_Nil, /* 0: DT_NON no more qualifiers */
1443 tq_Ptr, /* 1: DT_PTR pointer */
1444 tq_Proc, /* 2: DT_FCN function */
1445 tq_Array, /* 3: DT_ARY array */
1446 };
1447
1448
1449 /* Keep track of different sized allocation requests. */
1450 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1451
1452 \f
1453 /* Pointers and such to the original symbol table that is read in. */
1454 static struct filehdr orig_file_header; /* global object file header */
1455
1456 static HDRR orig_sym_hdr; /* symbolic header on input */
1457 static char *orig_linenum; /* line numbers */
1458 static DNR *orig_dense; /* dense numbers */
1459 static PDR *orig_procs; /* procedures */
1460 static SYMR *orig_local_syms; /* local symbols */
1461 static OPTR *orig_opt_syms; /* optimization symbols */
1462 static AUXU *orig_aux_syms; /* auxiliary symbols */
1463 static char *orig_local_strs; /* local strings */
1464 static char *orig_ext_strs; /* external strings */
1465 static FDR *orig_files; /* file descriptors */
1466 static symint_t *orig_rfds; /* relative file desc's */
1467 static EXTR *orig_ext_syms; /* external symbols */
1468
1469 /* Macros to convert an index into a given object within the original
1470 symbol table. */
1471 #define CHECK(num,max,str) \
1472 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1473
1474 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1475 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1476 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1477 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1478 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1479 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1480 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1481 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1482 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1483 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1484 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1485
1486 /* Various other statics. */
1487 static HDRR symbolic_header; /* symbolic header */
1488 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1489 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1490 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1491 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1492 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1493 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1494 static unsigned long file_offset = 0; /* current file offset */
1495 static unsigned long max_file_offset = 0; /* maximum file offset */
1496 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1497 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1498 static char *progname = (char *) 0; /* program name for errors */
1499 static const char *input_name = "stdin"; /* name of input file */
1500 static char *object_name = (char *) 0; /* tmp. name of object file */
1501 static char *obj_in_name = (char *) 0; /* name of input object file */
1502 static char *cur_line_start = (char *) 0; /* current line read in */
1503 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1504 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1505 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1506 static long line_number = 0; /* current input line number */
1507 static int debug = 0; /* trace functions */
1508 static int version = 0; /* print version # */
1509 static int verbose = 0;
1510 static int had_errors = 0; /* != 0 if errors were found */
1511 static int rename_output = 0; /* != 0 if rename output file*/
1512 static int delete_input = 0; /* != 0 if delete input after done */
1513 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1514
1515
1516 /* Pseudo symbol to use when putting stabs into the symbol table. */
1517 #ifndef STABS_SYMBOL
1518 #define STABS_SYMBOL "@stabs"
1519 #endif
1520
1521 static const char stabs_symbol[] = STABS_SYMBOL;
1522
1523 \f
1524 /* Forward reference for functions. See the definition for more details. */
1525
1526 #ifndef STATIC
1527 #define STATIC static
1528 #endif
1529
1530 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1531 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1532 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1533 shash_t **);
1534 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1535 symint_t, symint_t);
1536 STATIC symint_t add_ext_symbol (EXTR *, int);
1537 STATIC symint_t add_aux_sym_symint (symint_t);
1538 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1539 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1540 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1541 STATIC void add_unknown_tag (tag_t *);
1542 STATIC void add_procedure (const char *, const char *);
1543 STATIC void initialize_init_file (void);
1544 STATIC void add_file (const char *, const char *);
1545 STATIC void add_bytes (varray_t *, char *, Size_t);
1546 STATIC void add_varray_page (varray_t *);
1547 STATIC void update_headers (void);
1548 STATIC void write_varray (varray_t *, off_t, const char *);
1549 STATIC void write_object (void);
1550 STATIC const char *st_to_string (st_t);
1551 STATIC const char *sc_to_string (sc_t);
1552 STATIC char *read_line (void);
1553 STATIC void parse_input (void);
1554 STATIC void mark_stabs (const char *);
1555 STATIC void parse_begin (const char *);
1556 STATIC void parse_bend (const char *);
1557 STATIC void parse_def (const char *);
1558 STATIC void parse_end (const char *);
1559 STATIC void parse_ent (const char *);
1560 STATIC void parse_file (const char *);
1561 STATIC void parse_stabs_common (const char *, const char *, const char *);
1562 STATIC void parse_stabs (const char *);
1563 STATIC void parse_stabn (const char *);
1564 STATIC page_t *read_seek (Size_t, off_t, const char *);
1565 STATIC void copy_object (void);
1566
1567 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1568 STATIC page_t *allocate_page (void);
1569 STATIC page_t *allocate_multiple_pages (Size_t);
1570 STATIC void free_multiple_pages (page_t *, Size_t);
1571
1572 #ifndef MALLOC_CHECK
1573 STATIC page_t *allocate_cluster (Size_t);
1574 #endif
1575
1576 STATIC forward_t *allocate_forward (void);
1577 STATIC scope_t *allocate_scope (void);
1578 STATIC shash_t *allocate_shash (void);
1579 STATIC tag_t *allocate_tag (void);
1580 STATIC thash_t *allocate_thash (void);
1581 STATIC thead_t *allocate_thead (void);
1582 STATIC vlinks_t *allocate_vlinks (void);
1583
1584 STATIC void free_forward (forward_t *);
1585 STATIC void free_scope (scope_t *);
1586 STATIC void free_tag (tag_t *);
1587 STATIC void free_thead (thead_t *);
1588
1589 extern char *optarg;
1590 extern int optind;
1591 extern int opterr;
1592 \f
1593 /* List of assembler pseudo ops and beginning sequences that need
1594 special actions. Someday, this should be a hash table, and such,
1595 but for now a linear list of names and calls to memcmp will
1596 do...... */
1597
1598 typedef struct _pseudo_ops {
1599 const char *const name; /* pseudo-op in ascii */
1600 const int len; /* length of name to compare */
1601 void (*const func) (const char *); /* function to handle line */
1602 } pseudo_ops_t;
1603
1604 static const pseudo_ops_t pseudo_ops[] = {
1605 { "#.def", sizeof("#.def")-1, parse_def },
1606 { "#.begin", sizeof("#.begin")-1, parse_begin },
1607 { "#.bend", sizeof("#.bend")-1, parse_bend },
1608 { ".end", sizeof(".end")-1, parse_end },
1609 { ".ent", sizeof(".ent")-1, parse_ent },
1610 { ".file", sizeof(".file")-1, parse_file },
1611 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1612 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1613 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1614 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1615 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1616 };
1617
1618 \f
1619 /* Command line options for getopt_long. */
1620
1621 static const struct option options[] =
1622 {
1623 { "version", 0, 0, 'V' },
1624 { "verbose", 0, 0, 'v' },
1625 { 0, 0, 0, 0 }
1626 };
1627 \f
1628 /* Add a page to a varray object. */
1629
1630 STATIC void
1631 add_varray_page (varray_t *vp)
1632 {
1633 vlinks_t *new_links = allocate_vlinks ();
1634
1635 #ifdef MALLOC_CHECK
1636 if (vp->object_size > 1)
1637 new_links->datum = xcalloc (1, vp->object_size);
1638 else
1639 #endif
1640 new_links->datum = allocate_page ();
1641
1642 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1643 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1644
1645 new_links->start_index = vp->num_allocated;
1646 vp->objects_last_page = 0;
1647
1648 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1649 vp->first = vp->last = new_links;
1650 else
1651 { /* 2nd or greater allocation */
1652 new_links->prev = vp->last;
1653 vp->last->next = new_links;
1654 vp->last = new_links;
1655 }
1656 }
1657
1658 \f
1659 /* Compute hash code (from tree.c) */
1660
1661 #define HASHBITS 30
1662
1663 STATIC shash_t *
1664 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1665 symint_t *ret_hash_index)
1666 {
1667 unsigned long hi;
1668 Ptrdiff_t i;
1669 shash_t *ptr;
1670 int first_ch = *text;
1671
1672 hi = hash_len;
1673 for (i = 0; i < hash_len; i++)
1674 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1675
1676 hi &= (1 << HASHBITS) - 1;
1677 hi %= SHASH_SIZE;
1678
1679 if (ret_hash_index != (symint_t *) 0)
1680 *ret_hash_index = hi;
1681
1682 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1683 if ((symint_t) hash_len == ptr->len
1684 && first_ch == ptr->string[0]
1685 && memcmp (text, ptr->string, hash_len) == 0)
1686 break;
1687
1688 return ptr;
1689 }
1690
1691 \f
1692 /* Add a string (and null pad) to one of the string tables. A
1693 consequence of hashing strings, is that we don't let strings cross
1694 page boundaries. The extra nulls will be ignored. VP is a string
1695 virtual array, HASH_TBL a pointer to the hash table, the string
1696 starts at START and the position one byte after the string is given
1697 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1698
1699 STATIC symint_t
1700 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1701 const char *end_p1, shash_t **ret_hash)
1702 {
1703 Ptrdiff_t len = end_p1 - start;
1704 shash_t *hash_ptr;
1705 symint_t hi;
1706
1707 if (len >= (Ptrdiff_t) PAGE_USIZE)
1708 fatal ("string too big (%ld bytes)", (long) len);
1709
1710 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1711 if (hash_ptr == (shash_t *) 0)
1712 {
1713 char *p;
1714
1715 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1716 {
1717 vp->num_allocated
1718 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1719 add_varray_page (vp);
1720 }
1721
1722 hash_ptr = allocate_shash ();
1723 hash_ptr->next = hash_tbl[hi];
1724 hash_tbl[hi] = hash_ptr;
1725
1726 hash_ptr->len = len;
1727 hash_ptr->indx = vp->num_allocated;
1728 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1729
1730 vp->objects_last_page += len+1;
1731 vp->num_allocated += len+1;
1732
1733 while (len-- > 0)
1734 *p++ = *start++;
1735
1736 *p = '\0';
1737 }
1738
1739 if (ret_hash != (shash_t **) 0)
1740 *ret_hash = hash_ptr;
1741
1742 return hash_ptr->indx;
1743 }
1744
1745 \f
1746 /* Add a local symbol. The symbol string starts at STR_START and the
1747 first byte after it is marked by STR_END_P1. The symbol has type
1748 TYPE and storage class STORAGE and value VALUE. INDX is an index
1749 to local/aux. symbols. */
1750
1751 STATIC symint_t
1752 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1753 sc_t storage, symint_t value, symint_t indx)
1754 {
1755 symint_t ret;
1756 SYMR *psym;
1757 scope_t *pscope;
1758 thead_t *ptag_head;
1759 tag_t *ptag;
1760 tag_t *ptag_next;
1761 varray_t *vp = &cur_file_ptr->symbols;
1762 int scope_delta = 0;
1763 shash_t *hash_ptr = (shash_t *) 0;
1764
1765 if (vp->objects_last_page == vp->objects_per_page)
1766 add_varray_page (vp);
1767
1768 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1769
1770 psym->value = value;
1771 psym->st = (unsigned) type;
1772 psym->sc = (unsigned) storage;
1773 psym->index = indx;
1774 psym->iss = (str_start == (const char *) 0)
1775 ? 0
1776 : add_string (&cur_file_ptr->strings,
1777 &cur_file_ptr->shash_head[0],
1778 str_start,
1779 str_end_p1,
1780 &hash_ptr);
1781
1782 ret = vp->num_allocated++;
1783
1784 if (MIPS_IS_STAB (psym))
1785 return ret;
1786
1787 /* Save the symbol within the hash table if this is a static
1788 item, and it has a name. */
1789 if (hash_ptr != (shash_t *) 0
1790 && (type == st_Global || type == st_Static || type == st_Label
1791 || type == st_Proc || type == st_StaticProc))
1792 hash_ptr->sym_ptr = psym;
1793
1794 /* push or pop a scope if appropriate. */
1795 switch (type)
1796 {
1797 default:
1798 break;
1799
1800 case st_File: /* beginning of file */
1801 case st_Proc: /* procedure */
1802 case st_StaticProc: /* static procedure */
1803 case st_Block: /* begin scope */
1804 pscope = allocate_scope ();
1805 pscope->prev = cur_file_ptr->cur_scope;
1806 pscope->lsym = psym;
1807 pscope->lnumber = ret;
1808 pscope->type = type;
1809 cur_file_ptr->cur_scope = pscope;
1810
1811 if (type != st_File)
1812 scope_delta = 1;
1813
1814 /* For every block type except file, struct, union, or
1815 enumeration blocks, push a level on the tag stack. We omit
1816 file types, so that tags can span file boundaries. */
1817 if (type != st_File && storage != sc_Info)
1818 {
1819 ptag_head = allocate_thead ();
1820 ptag_head->first_tag = 0;
1821 ptag_head->prev = cur_tag_head;
1822 cur_tag_head = ptag_head;
1823 }
1824 break;
1825
1826 case st_End:
1827 pscope = cur_file_ptr->cur_scope;
1828 if (pscope == (scope_t *) 0)
1829 error ("internal error, too many st_End's");
1830
1831 else
1832 {
1833 st_t begin_type = (st_t) pscope->lsym->st;
1834
1835 if (begin_type != st_File)
1836 scope_delta = -1;
1837
1838 /* Except for file, structure, union, or enumeration end
1839 blocks remove all tags created within this scope. */
1840 if (begin_type != st_File && storage != sc_Info)
1841 {
1842 ptag_head = cur_tag_head;
1843 cur_tag_head = ptag_head->prev;
1844
1845 for (ptag = ptag_head->first_tag;
1846 ptag != (tag_t *) 0;
1847 ptag = ptag_next)
1848 {
1849 if (ptag->forward_ref != (forward_t *) 0)
1850 add_unknown_tag (ptag);
1851
1852 ptag_next = ptag->same_block;
1853 ptag->hash_ptr->tag_ptr = ptag->same_name;
1854 free_tag (ptag);
1855 }
1856
1857 free_thead (ptag_head);
1858 }
1859
1860 cur_file_ptr->cur_scope = pscope->prev;
1861 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1862
1863 if (storage != sc_Info)
1864 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1865
1866 if (begin_type == st_File || begin_type == st_Block)
1867 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1868
1869 /* Functions push two or more aux words as follows:
1870 1st word: index+1 of the end symbol
1871 2nd word: type of the function (plus any aux words needed).
1872 Also, tie the external pointer back to the function begin symbol. */
1873 else
1874 {
1875 symint_t type;
1876 pscope->lsym->index = add_aux_sym_symint (ret+1);
1877 type = add_aux_sym_tir (&last_func_type_info,
1878 hash_no,
1879 &cur_file_ptr->thash_head[0]);
1880 if (last_func_eptr)
1881 {
1882 last_func_eptr->ifd = cur_file_ptr->file_index;
1883
1884 /* The index for an external st_Proc symbol is the index
1885 of the st_Proc symbol in the local symbol table. */
1886 last_func_eptr->asym.index = psym->index;
1887 }
1888 }
1889
1890 free_scope (pscope);
1891 }
1892 }
1893
1894 cur_file_ptr->nested_scopes += scope_delta;
1895
1896 if (debug && type != st_File
1897 && (debug > 2 || type == st_Block || type == st_End
1898 || type == st_Proc || type == st_StaticProc))
1899 {
1900 const char *sc_str = sc_to_string (storage);
1901 const char *st_str = st_to_string (type);
1902 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1903
1904 fprintf (stderr,
1905 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1906 value, depth, sc_str);
1907
1908 if (str_start && str_end_p1 - str_start > 0)
1909 fprintf (stderr, " st= %-11s name= %.*s\n",
1910 st_str, (int) (str_end_p1 - str_start), str_start);
1911 else
1912 {
1913 Size_t len = strlen (st_str);
1914 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1915 }
1916 }
1917
1918 return ret;
1919 }
1920
1921 \f
1922 /* Add an external symbol with symbol pointer ESYM and file index
1923 IFD. */
1924
1925 STATIC symint_t
1926 add_ext_symbol (EXTR *esym, int ifd)
1927 {
1928 const char *str_start; /* first byte in string */
1929 const char *str_end_p1; /* first byte after string */
1930 EXTR *psym;
1931 varray_t *vp = &ext_symbols;
1932 shash_t *hash_ptr = (shash_t *) 0;
1933
1934 str_start = ORIG_ESTRS (esym->asym.iss);
1935 str_end_p1 = str_start + strlen (str_start);
1936
1937 if (debug > 1)
1938 {
1939 long value = esym->asym.value;
1940 const char *sc_str = sc_to_string ((sc_t) esym->asym.sc);
1941 const char *st_str = st_to_string ((st_t) esym->asym.st);
1942
1943 fprintf (stderr,
1944 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1945 value, ifd, sc_str);
1946
1947 if (str_start && str_end_p1 - str_start > 0)
1948 fprintf (stderr, " st= %-11s name= %.*s\n",
1949 st_str, (int) (str_end_p1 - str_start), str_start);
1950 else
1951 fprintf (stderr, " st= %s\n", st_str);
1952 }
1953
1954 if (vp->objects_last_page == vp->objects_per_page)
1955 add_varray_page (vp);
1956
1957 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1958
1959 *psym = *esym;
1960 psym->ifd = ifd;
1961 psym->asym.index = indexNil;
1962 psym->asym.iss = (str_start == (const char *) 0)
1963 ? 0
1964 : add_string (&ext_strings,
1965 &ext_str_hash[0],
1966 str_start,
1967 str_end_p1,
1968 &hash_ptr);
1969
1970 hash_ptr->esym_ptr = psym;
1971 return vp->num_allocated++;
1972 }
1973
1974 \f
1975 /* Add an auxiliary symbol (passing a symint). */
1976
1977 STATIC symint_t
1978 add_aux_sym_symint (symint_t aux_word)
1979 {
1980 AUXU *aux_ptr;
1981 efdr_t *file_ptr = cur_file_ptr;
1982 varray_t *vp = &file_ptr->aux_syms;
1983
1984 if (vp->objects_last_page == vp->objects_per_page)
1985 add_varray_page (vp);
1986
1987 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1988 aux_ptr->isym = aux_word;
1989
1990 return vp->num_allocated++;
1991 }
1992
1993
1994 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1995
1996 STATIC symint_t
1997 add_aux_sym_rndx (int file_index, symint_t sym_index)
1998 {
1999 AUXU *aux_ptr;
2000 efdr_t *file_ptr = cur_file_ptr;
2001 varray_t *vp = &file_ptr->aux_syms;
2002
2003 if (vp->objects_last_page == vp->objects_per_page)
2004 add_varray_page (vp);
2005
2006 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2007 aux_ptr->rndx.rfd = file_index;
2008 aux_ptr->rndx.index = sym_index;
2009
2010 return vp->num_allocated++;
2011 }
2012
2013 \f
2014 /* Add an auxiliary symbol (passing the basic type and possibly
2015 type qualifiers). */
2016
2017 STATIC symint_t
2018 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2019 {
2020 AUXU *aux_ptr;
2021 efdr_t *file_ptr = cur_file_ptr;
2022 varray_t *vp = &file_ptr->aux_syms;
2023 static AUXU init_aux;
2024 symint_t ret;
2025 int i;
2026 AUXU aux;
2027
2028 aux = init_aux;
2029 aux.ti.bt = (int) t->basic_type;
2030 aux.ti.continued = 0;
2031 aux.ti.fBitfield = t->bitfield;
2032
2033 aux.ti.tq0 = (int) t->type_qualifiers[0];
2034 aux.ti.tq1 = (int) t->type_qualifiers[1];
2035 aux.ti.tq2 = (int) t->type_qualifiers[2];
2036 aux.ti.tq3 = (int) t->type_qualifiers[3];
2037 aux.ti.tq4 = (int) t->type_qualifiers[4];
2038 aux.ti.tq5 = (int) t->type_qualifiers[5];
2039
2040
2041 /* For anything that adds additional information, we must not hash,
2042 so check here, and reset our state. */
2043
2044 if (state != hash_no
2045 && (t->type_qualifiers[0] == tq_Array
2046 || t->type_qualifiers[1] == tq_Array
2047 || t->type_qualifiers[2] == tq_Array
2048 || t->type_qualifiers[3] == tq_Array
2049 || t->type_qualifiers[4] == tq_Array
2050 || t->type_qualifiers[5] == tq_Array
2051 || t->basic_type == bt_Struct
2052 || t->basic_type == bt_Union
2053 || t->basic_type == bt_Enum
2054 || t->bitfield
2055 || t->num_dims > 0))
2056 state = hash_no;
2057
2058 /* See if we can hash this type, and save some space, but some types
2059 can't be hashed (because they contain arrays or continuations),
2060 and others can be put into the hash list, but cannot use existing
2061 types because other aux entries precede this one. */
2062
2063 if (state != hash_no)
2064 {
2065 thash_t *hash_ptr;
2066 symint_t hi;
2067
2068 hi = aux.isym & ((1 << HASHBITS) - 1);
2069 hi %= THASH_SIZE;
2070
2071 for (hash_ptr = hash_tbl[hi];
2072 hash_ptr != (thash_t *) 0;
2073 hash_ptr = hash_ptr->next)
2074 {
2075 if (aux.isym == hash_ptr->type.isym)
2076 break;
2077 }
2078
2079 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2080 return hash_ptr->indx;
2081
2082 if (hash_ptr == (thash_t *) 0)
2083 {
2084 hash_ptr = allocate_thash ();
2085 hash_ptr->next = hash_tbl[hi];
2086 hash_ptr->type = aux;
2087 hash_ptr->indx = vp->num_allocated;
2088 hash_tbl[hi] = hash_ptr;
2089 }
2090 }
2091
2092 /* Everything is set up, add the aux symbol. */
2093 if (vp->objects_last_page == vp->objects_per_page)
2094 add_varray_page (vp);
2095
2096 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2097 *aux_ptr = aux;
2098
2099 ret = vp->num_allocated++;
2100
2101 /* Add bitfield length if it exists.
2102
2103 NOTE: Mips documentation claims bitfield goes at the end of the
2104 AUX record, but the DECstation compiler emits it here.
2105 (This would only make a difference for enum bitfields.)
2106
2107 Also note: We use the last size given since gcc may emit 2
2108 for an enum bitfield. */
2109
2110 if (t->bitfield)
2111 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2112
2113
2114 /* Add tag information if needed. Structure, union, and enum
2115 references add 2 aux symbols: a [file index, symbol index]
2116 pointer to the structure type, and the current file index. */
2117
2118 if (t->basic_type == bt_Struct
2119 || t->basic_type == bt_Union
2120 || t->basic_type == bt_Enum)
2121 {
2122 symint_t file_index = t->tag_ptr->ifd;
2123 symint_t sym_index = t->tag_ptr->indx;
2124
2125 if (t->unknown_tag)
2126 {
2127 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2128 (void) add_aux_sym_symint ((symint_t)-1);
2129 }
2130 else if (sym_index != indexNil)
2131 {
2132 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2133 (void) add_aux_sym_symint (file_index);
2134 }
2135 else
2136 {
2137 forward_t *forward_ref = allocate_forward ();
2138
2139 forward_ref->type_ptr = aux_ptr;
2140 forward_ref->next = t->tag_ptr->forward_ref;
2141 t->tag_ptr->forward_ref = forward_ref;
2142
2143 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2144 forward_ref->index_ptr
2145 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2146
2147 (void) add_aux_sym_symint (file_index);
2148 forward_ref->ifd_ptr
2149 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2150 }
2151 }
2152
2153 /* Add information about array bounds if they exist. */
2154 for (i = 0; i < t->num_dims; i++)
2155 {
2156 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2157 cur_file_ptr->int_type);
2158
2159 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2160 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2161 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2162 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2163 ? 0
2164 : (t->sizes[i] * 8) / t->dimensions[i]);
2165 };
2166
2167 /* NOTE: Mips documentation claims that the bitfield width goes here.
2168 But it needs to be emitted earlier. */
2169
2170 return ret;
2171 }
2172
2173 \f
2174 /* Add a tag to the tag table (unless it already exists). */
2175
2176 STATIC tag_t *
2177 get_tag (const char *tag_start, /* 1st byte of tag name */
2178 const char *tag_end_p1, /* 1st byte after tag name */
2179 symint_t indx, /* index of tag start block */
2180 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2181
2182 {
2183 shash_t *hash_ptr;
2184 tag_t *tag_ptr;
2185 hash_ptr = hash_string (tag_start,
2186 tag_end_p1 - tag_start,
2187 &tag_hash[0],
2188 (symint_t *) 0);
2189
2190 if (hash_ptr != (shash_t *) 0
2191 && hash_ptr->tag_ptr != (tag_t *) 0)
2192 {
2193 tag_ptr = hash_ptr->tag_ptr;
2194 if (indx != indexNil)
2195 {
2196 tag_ptr->basic_type = basic_type;
2197 tag_ptr->ifd = cur_file_ptr->file_index;
2198 tag_ptr->indx = indx;
2199 }
2200 return tag_ptr;
2201 }
2202
2203 (void) add_string (&tag_strings,
2204 &tag_hash[0],
2205 tag_start,
2206 tag_end_p1,
2207 &hash_ptr);
2208
2209 tag_ptr = allocate_tag ();
2210 tag_ptr->forward_ref = (forward_t *) 0;
2211 tag_ptr->hash_ptr = hash_ptr;
2212 tag_ptr->same_name = hash_ptr->tag_ptr;
2213 tag_ptr->basic_type = basic_type;
2214 tag_ptr->indx = indx;
2215 tag_ptr->ifd = (indx == indexNil
2216 ? (symint_t) -1 : cur_file_ptr->file_index);
2217 tag_ptr->same_block = cur_tag_head->first_tag;
2218
2219 cur_tag_head->first_tag = tag_ptr;
2220 hash_ptr->tag_ptr = tag_ptr;
2221
2222 return tag_ptr;
2223 }
2224
2225 \f
2226 /* Add an unknown {struct, union, enum} tag. */
2227
2228 STATIC void
2229 add_unknown_tag (tag_t *ptag)
2230 {
2231 shash_t *hash_ptr = ptag->hash_ptr;
2232 char *name_start = hash_ptr->string;
2233 char *name_end_p1 = name_start + hash_ptr->len;
2234 forward_t *f_next = ptag->forward_ref;
2235 forward_t *f_cur;
2236 int sym_index;
2237 int file_index = cur_file_ptr->file_index;
2238
2239 if (debug > 1)
2240 {
2241 const char *agg_type = "{unknown aggregate type}";
2242 switch (ptag->basic_type)
2243 {
2244 case bt_Struct: agg_type = "struct"; break;
2245 case bt_Union: agg_type = "union"; break;
2246 case bt_Enum: agg_type = "enum"; break;
2247 default: break;
2248 }
2249
2250 fprintf (stderr, "unknown %s %.*s found\n",
2251 agg_type, (int) hash_ptr->len, name_start);
2252 }
2253
2254 sym_index = add_local_symbol (name_start,
2255 name_end_p1,
2256 st_Block,
2257 sc_Info,
2258 (symint_t) 0,
2259 (symint_t) 0);
2260
2261 (void) add_local_symbol (name_start,
2262 name_end_p1,
2263 st_End,
2264 sc_Info,
2265 (symint_t) 0,
2266 (symint_t) 0);
2267
2268 while (f_next != (forward_t *) 0)
2269 {
2270 f_cur = f_next;
2271 f_next = f_next->next;
2272
2273 f_cur->ifd_ptr->isym = file_index;
2274 f_cur->index_ptr->rndx.index = sym_index;
2275
2276 free_forward (f_cur);
2277 }
2278
2279 return;
2280 }
2281
2282 \f
2283 /* Add a procedure to the current file's list of procedures, and record
2284 this is the current procedure. If the assembler created a PDR for
2285 this procedure, use that to initialize the current PDR. */
2286
2287 STATIC void
2288 add_procedure (const char *func_start, /* 1st byte of func name */
2289 const char *func_end_p1) /* 1st byte after func name */
2290 {
2291 PDR *new_proc_ptr;
2292 efdr_t *file_ptr = cur_file_ptr;
2293 varray_t *vp = &file_ptr->procs;
2294 symint_t value = 0;
2295 st_t proc_type = st_Proc;
2296 shash_t *shash_ptr = hash_string (func_start,
2297 func_end_p1 - func_start,
2298 &orig_str_hash[0],
2299 (symint_t *) 0);
2300
2301 if (debug)
2302 fputc ('\n', stderr);
2303
2304 if (vp->objects_last_page == vp->objects_per_page)
2305 add_varray_page (vp);
2306
2307 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2308
2309 vp->num_allocated++;
2310
2311
2312 /* Did the assembler create this procedure? If so, get the PDR information. */
2313 cur_oproc_ptr = (PDR *) 0;
2314 if (shash_ptr != (shash_t *) 0)
2315 {
2316 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2317 SYMR *sym_ptr = shash_ptr->sym_ptr;
2318
2319 if (old_proc_ptr != (PDR *) 0
2320 && sym_ptr != (SYMR *) 0
2321 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2322 {
2323 cur_oproc_begin = sym_ptr;
2324 cur_oproc_end = shash_ptr->end_ptr;
2325 value = sym_ptr->value;
2326
2327 cur_oproc_ptr = old_proc_ptr;
2328 proc_type = (st_t) sym_ptr->st;
2329 *new_proc_ptr = *old_proc_ptr; /* initialize */
2330 }
2331 }
2332
2333 if (cur_oproc_ptr == (PDR *) 0)
2334 error ("did not find a PDR block for %.*s",
2335 (int) (func_end_p1 - func_start), func_start);
2336
2337 /* Determine the start of symbols. */
2338 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2339
2340 /* Push the start of the function. */
2341 (void) add_local_symbol (func_start, func_end_p1,
2342 proc_type, sc_Text,
2343 value,
2344 (symint_t) 0);
2345 }
2346
2347 \f
2348 /* Initialize the init_file structure. */
2349
2350 STATIC void
2351 initialize_init_file (void)
2352 {
2353 union {
2354 unsigned char c[4];
2355 int i;
2356 } endian_test;
2357
2358 memset (&init_file, 0, sizeof (init_file));
2359
2360 init_file.fdr.lang = langC;
2361 init_file.fdr.fMerge = 1;
2362 init_file.fdr.glevel = GLEVEL_2;
2363
2364 /* mips-tfile doesn't attempt to perform byte swapping and always writes
2365 out integers in its native ordering. For cross-compilers, this need
2366 not be the same as either the host or the target. The simplest thing
2367 to do is skip the configury and perform an introspective test. */
2368 /* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64
2369 and would/may require significant work to be used in cross-compiler
2370 configurations, so we could simply admit defeat and hard code this as
2371 little-endian, i.e. init_file.fdr.fBigendian = 0. */
2372 endian_test.i = 1;
2373 if (endian_test.c[3])
2374 init_file.fdr.fBigendian = 1;
2375
2376 INITIALIZE_VARRAY (&init_file.strings, char);
2377 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2378 INITIALIZE_VARRAY (&init_file.procs, PDR);
2379 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2380
2381 init_file_initialized = 1;
2382 }
2383
2384 /* Add a new filename, and set up all of the file relative
2385 virtual arrays (strings, symbols, aux syms, etc.). Record
2386 where the current file structure lives. */
2387
2388 STATIC void
2389 add_file (const char *file_start, /* first byte in string */
2390 const char *file_end_p1) /* first byte after string */
2391 {
2392 static char zero_bytes[2] = { '\0', '\0' };
2393
2394 Ptrdiff_t len = file_end_p1 - file_start;
2395 int first_ch = *file_start;
2396 efdr_t *file_ptr;
2397
2398 if (debug)
2399 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2400
2401 /* See if the file has already been created. */
2402 for (file_ptr = first_file;
2403 file_ptr != (efdr_t *) 0;
2404 file_ptr = file_ptr->next_file)
2405 {
2406 if (first_ch == file_ptr->name[0]
2407 && file_ptr->name[len] == '\0'
2408 && memcmp (file_start, file_ptr->name, len) == 0)
2409 {
2410 cur_file_ptr = file_ptr;
2411 break;
2412 }
2413 }
2414
2415 /* If this is a new file, create it. */
2416 if (file_ptr == (efdr_t *) 0)
2417 {
2418 if (file_desc.objects_last_page == file_desc.objects_per_page)
2419 add_varray_page (&file_desc);
2420
2421 if (! init_file_initialized)
2422 initialize_init_file ();
2423
2424 file_ptr = cur_file_ptr
2425 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2426 *file_ptr = init_file;
2427
2428 file_ptr->file_index = file_desc.num_allocated++;
2429
2430 /* Allocate the string hash table. */
2431 file_ptr->shash_head = (shash_t **) allocate_page ();
2432
2433 /* Make sure 0 byte in string table is null */
2434 add_string (&file_ptr->strings,
2435 &file_ptr->shash_head[0],
2436 &zero_bytes[0],
2437 &zero_bytes[0],
2438 (shash_t **) 0);
2439
2440 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2441 fatal ("filename goes over one page boundary");
2442
2443 /* Push the start of the filename. We assume that the filename
2444 will be stored at string offset 1. */
2445 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2446 (symint_t) 0, (symint_t) 0);
2447 file_ptr->fdr.rss = 1;
2448 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2449 file_ptr->name_len = file_end_p1 - file_start;
2450
2451 /* Update the linked list of file descriptors. */
2452 *last_file_ptr = file_ptr;
2453 last_file_ptr = &file_ptr->next_file;
2454
2455 /* Add void & int types to the file (void should be first to catch
2456 errant 0's within the index fields). */
2457 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2458 hash_yes,
2459 &cur_file_ptr->thash_head[0]);
2460
2461 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2462 hash_yes,
2463 &cur_file_ptr->thash_head[0]);
2464 }
2465 }
2466
2467 \f
2468 /* Add a stream of random bytes to a varray. */
2469
2470 STATIC void
2471 add_bytes (varray_t *vp, /* virtual array to add too */
2472 char *input_ptr, /* start of the bytes */
2473 Size_t nitems) /* # items to move */
2474 {
2475 Size_t move_items;
2476 Size_t move_bytes;
2477 char *ptr;
2478
2479 while (nitems > 0)
2480 {
2481 if (vp->objects_last_page >= vp->objects_per_page)
2482 add_varray_page (vp);
2483
2484 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2485 move_items = vp->objects_per_page - vp->objects_last_page;
2486 if (move_items > nitems)
2487 move_items = nitems;
2488
2489 move_bytes = move_items * vp->object_size;
2490 nitems -= move_items;
2491
2492 if (move_bytes >= 32)
2493 {
2494 (void) memcpy (ptr, input_ptr, move_bytes);
2495 input_ptr += move_bytes;
2496 }
2497 else
2498 {
2499 while (move_bytes-- > 0)
2500 *ptr++ = *input_ptr++;
2501 }
2502 }
2503 }
2504
2505 \f
2506 /* Convert storage class to string. */
2507
2508 STATIC const char *
2509 sc_to_string (sc_t storage_class)
2510 {
2511 switch (storage_class)
2512 {
2513 case sc_Nil: return "Nil,";
2514 case sc_Text: return "Text,";
2515 case sc_Data: return "Data,";
2516 case sc_Bss: return "Bss,";
2517 case sc_Register: return "Register,";
2518 case sc_Abs: return "Abs,";
2519 case sc_Undefined: return "Undefined,";
2520 case sc_CdbLocal: return "CdbLocal,";
2521 case sc_Bits: return "Bits,";
2522 case sc_CdbSystem: return "CdbSystem,";
2523 case sc_RegImage: return "RegImage,";
2524 case sc_Info: return "Info,";
2525 case sc_UserStruct: return "UserStruct,";
2526 case sc_SData: return "SData,";
2527 case sc_SBss: return "SBss,";
2528 case sc_RData: return "RData,";
2529 case sc_Var: return "Var,";
2530 case sc_Common: return "Common,";
2531 case sc_SCommon: return "SCommon,";
2532 case sc_VarRegister: return "VarRegister,";
2533 case sc_Variant: return "Variant,";
2534 case sc_SUndefined: return "SUndefined,";
2535 case sc_Init: return "Init,";
2536 case sc_Max: return "Max,";
2537 }
2538
2539 return "???,";
2540 }
2541
2542 \f
2543 /* Convert symbol type to string. */
2544
2545 STATIC const char *
2546 st_to_string (st_t symbol_type)
2547 {
2548 switch (symbol_type)
2549 {
2550 case st_Nil: return "Nil,";
2551 case st_Global: return "Global,";
2552 case st_Static: return "Static,";
2553 case st_Param: return "Param,";
2554 case st_Local: return "Local,";
2555 case st_Label: return "Label,";
2556 case st_Proc: return "Proc,";
2557 case st_Block: return "Block,";
2558 case st_End: return "End,";
2559 case st_Member: return "Member,";
2560 case st_Typedef: return "Typedef,";
2561 case st_File: return "File,";
2562 case st_RegReloc: return "RegReloc,";
2563 case st_Forward: return "Forward,";
2564 case st_StaticProc: return "StaticProc,";
2565 case st_Constant: return "Constant,";
2566 case st_Str: return "String,";
2567 case st_Number: return "Number,";
2568 case st_Expr: return "Expr,";
2569 case st_Type: return "Type,";
2570 case st_Max: return "Max,";
2571 }
2572
2573 return "???,";
2574 }
2575
2576 \f
2577 /* Read a line from standard input, and return the start of the buffer
2578 (which is grows if the line is too big). We split lines at the
2579 semi-colon, and return each logical line independently. */
2580
2581 STATIC char *
2582 read_line (void)
2583 {
2584 static int line_split_p = 0;
2585 int string_p = 0;
2586 int comment_p = 0;
2587 int ch;
2588 char *ptr;
2589
2590 if (cur_line_start == (char *) 0)
2591 { /* allocate initial page */
2592 cur_line_start = (char *) allocate_page ();
2593 cur_line_alloc = PAGE_SIZE;
2594 }
2595
2596 if (!line_split_p)
2597 line_number++;
2598
2599 line_split_p = 0;
2600 cur_line_nbytes = 0;
2601
2602 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2603 {
2604 if (++cur_line_nbytes >= cur_line_alloc-1)
2605 {
2606 int num_pages = cur_line_alloc / PAGE_SIZE;
2607 char *old_buffer = cur_line_start;
2608
2609 cur_line_alloc += PAGE_SIZE;
2610 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2611 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2612
2613 ptr = cur_line_start + cur_line_nbytes - 1;
2614 }
2615
2616 if (ch == '\n')
2617 {
2618 *ptr++ = '\n';
2619 *ptr = '\0';
2620 cur_line_ptr = cur_line_start;
2621 return cur_line_ptr;
2622 }
2623
2624 else if (ch == '\0')
2625 error ("null character found in input");
2626
2627 else if (!comment_p)
2628 {
2629 if (ch == '"')
2630 string_p = !string_p;
2631
2632 else if (ch == '#')
2633 comment_p++;
2634
2635 else if (ch == ';' && !string_p)
2636 {
2637 line_split_p = 1;
2638 *ptr++ = '\n';
2639 *ptr = '\0';
2640 cur_line_ptr = cur_line_start;
2641 return cur_line_ptr;
2642 }
2643 }
2644 }
2645
2646 if (ferror (stdin))
2647 pfatal_with_name (input_name);
2648
2649 cur_line_ptr = (char *) 0;
2650 return (char *) 0;
2651 }
2652
2653 \f
2654 /* Parse #.begin directives which have a label as the first argument
2655 which gives the location of the start of the block. */
2656
2657 STATIC void
2658 parse_begin (const char *start)
2659 {
2660 const char *end_p1; /* end of label */
2661 int ch;
2662 shash_t *hash_ptr; /* hash pointer to lookup label */
2663
2664 if (cur_file_ptr == (efdr_t *) 0)
2665 {
2666 error ("#.begin directive without a preceding .file directive");
2667 return;
2668 }
2669
2670 if (cur_proc_ptr == (PDR *) 0)
2671 {
2672 error ("#.begin directive without a preceding .ent directive");
2673 return;
2674 }
2675
2676 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2677 ;
2678
2679 hash_ptr = hash_string (start,
2680 end_p1 - start,
2681 &orig_str_hash[0],
2682 (symint_t *) 0);
2683
2684 if (hash_ptr == (shash_t *) 0)
2685 {
2686 error ("label %.*s not found for #.begin",
2687 (int) (end_p1 - start), start);
2688 return;
2689 }
2690
2691 if (cur_oproc_begin == (SYMR *) 0)
2692 {
2693 error ("procedure table %.*s not found for #.begin",
2694 (int) (end_p1 - start), start);
2695 return;
2696 }
2697
2698 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2699 st_Block, sc_Text,
2700 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2701 (symint_t) 0);
2702 }
2703
2704 \f
2705 /* Parse #.bend directives which have a label as the first argument
2706 which gives the location of the end of the block. */
2707
2708 STATIC void
2709 parse_bend (const char *start)
2710 {
2711 const char *end_p1; /* end of label */
2712 int ch;
2713 shash_t *hash_ptr; /* hash pointer to lookup label */
2714
2715 if (cur_file_ptr == (efdr_t *) 0)
2716 {
2717 error ("#.begin directive without a preceding .file directive");
2718 return;
2719 }
2720
2721 if (cur_proc_ptr == (PDR *) 0)
2722 {
2723 error ("#.bend directive without a preceding .ent directive");
2724 return;
2725 }
2726
2727 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2728 ;
2729
2730 hash_ptr = hash_string (start,
2731 end_p1 - start,
2732 &orig_str_hash[0],
2733 (symint_t *) 0);
2734
2735 if (hash_ptr == (shash_t *) 0)
2736 {
2737 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2738 return;
2739 }
2740
2741 if (cur_oproc_begin == (SYMR *) 0)
2742 {
2743 error ("procedure table %.*s not found for #.bend",
2744 (int) (end_p1 - start), start);
2745 return;
2746 }
2747
2748 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2749 st_End, sc_Text,
2750 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2751 (symint_t) 0);
2752 }
2753
2754 \f
2755 /* Parse #.def directives, which are contain standard COFF subdirectives
2756 to describe the debugging format. These subdirectives include:
2757
2758 .scl specify storage class
2759 .val specify a value
2760 .endef specify end of COFF directives
2761 .type specify the type
2762 .size specify the size of an array
2763 .dim specify an array dimension
2764 .tag specify a tag for a struct, union, or enum. */
2765
2766 STATIC void
2767 parse_def (const char *name_start)
2768 {
2769 const char *dir_start; /* start of current directive*/
2770 const char *dir_end_p1; /* end+1 of current directive*/
2771 const char *arg_start; /* start of current argument */
2772 const char *arg_end_p1; /* end+1 of current argument */
2773 const char *name_end_p1; /* end+1 of label */
2774 const char *tag_start = 0; /* start of tag name */
2775 const char *tag_end_p1 = 0; /* end+1 of tag name */
2776 sc_t storage_class = sc_Nil;
2777 st_t symbol_type = st_Nil;
2778 type_info_t t;
2779 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2780 int is_function = 0; /* != 0 if function */
2781 symint_t value = 0;
2782 symint_t indx = cur_file_ptr->void_type;
2783 int error_line = 0;
2784 symint_t arg_number;
2785 symint_t temp_array[ N_TQ ];
2786 int arg_was_number;
2787 int ch, i;
2788 Ptrdiff_t len;
2789
2790 static int inside_enumeration = 0; /* is this an enumeration? */
2791
2792
2793 /* Initialize the type information. */
2794 t = type_info_init;
2795
2796
2797 /* Search for the end of the name being defined. */
2798 /* Allow spaces and such in names for G++ templates, which produce stabs
2799 that look like:
2800
2801 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2802
2803 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2804 ;
2805
2806 if (ch == '\0')
2807 {
2808 error_line = __LINE__;
2809 saber_stop ();
2810 goto bomb_out;
2811 }
2812
2813 /* Parse the remaining subdirectives now. */
2814 dir_start = name_end_p1+1;
2815 for (;;)
2816 {
2817 while ((ch = *dir_start) == ' ' || ch == '\t')
2818 ++dir_start;
2819
2820 if (ch != '.')
2821 {
2822 error_line = __LINE__;
2823 saber_stop ();
2824 goto bomb_out;
2825 }
2826
2827 /* Are we done? */
2828 if (dir_start[1] == 'e'
2829 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2830 break;
2831
2832 /* Pick up the subdirective now. */
2833 for (dir_end_p1 = dir_start+1;
2834 (ch = *dir_end_p1) != ' ' && ch != '\t';
2835 dir_end_p1++)
2836 {
2837 if (ch == '\0' || ISSPACE (ch))
2838 {
2839 error_line = __LINE__;
2840 saber_stop ();
2841 goto bomb_out;
2842 }
2843 }
2844
2845 /* Pick up the subdirective argument now. */
2846 arg_was_number = arg_number = 0;
2847 arg_end_p1 = 0;
2848 arg_start = dir_end_p1+1;
2849 ch = *arg_start;
2850 while (ch == ' ' || ch == '\t')
2851 ch = *++arg_start;
2852
2853 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2854 {
2855 int ch2;
2856 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2857 /* It's only a number if followed by ';' or ','. */
2858 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2859 arg_was_number++;
2860 }
2861
2862 else if (ch == '\0' || ISSPACE (ch))
2863 {
2864 error_line = __LINE__;
2865 saber_stop ();
2866 goto bomb_out;
2867 }
2868
2869 if (!arg_was_number)
2870 {
2871 /* Allow spaces and such in names for G++ templates. */
2872 for (arg_end_p1 = arg_start+1;
2873 (ch = *arg_end_p1) != ';' && ch != '\0';
2874 arg_end_p1++)
2875 ;
2876
2877 if (ch == '\0')
2878 {
2879 error_line = __LINE__;
2880 saber_stop ();
2881 goto bomb_out;
2882 }
2883 }
2884
2885 /* Classify the directives now. */
2886 len = dir_end_p1 - dir_start;
2887 switch (dir_start[1])
2888 {
2889 default:
2890 error_line = __LINE__;
2891 saber_stop ();
2892 goto bomb_out;
2893
2894 case 'd':
2895 if (len == sizeof (".dim")-1
2896 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2897 && arg_was_number)
2898 {
2899 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2900
2901 *t_ptr = arg_number;
2902 while (*arg_end_p1 == ',' && arg_was_number)
2903 {
2904 arg_start = arg_end_p1+1;
2905 ch = *arg_start;
2906 while (ch == ' ' || ch == '\t')
2907 ch = *++arg_start;
2908
2909 arg_was_number = 0;
2910 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2911 {
2912 int ch2;
2913 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2914 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2915 arg_was_number++;
2916
2917 if (t_ptr == &temp_array[0])
2918 {
2919 error_line = __LINE__;
2920 saber_stop ();
2921 goto bomb_out;
2922 }
2923
2924 *--t_ptr = arg_number;
2925 }
2926 }
2927
2928 /* Reverse order of dimensions. */
2929 while (t_ptr <= &temp_array[ N_TQ-1 ])
2930 {
2931 if (t.num_dims >= N_TQ-1)
2932 {
2933 error_line = __LINE__;
2934 saber_stop ();
2935 goto bomb_out;
2936 }
2937
2938 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2939 }
2940 break;
2941 }
2942 else
2943 {
2944 error_line = __LINE__;
2945 saber_stop ();
2946 goto bomb_out;
2947 }
2948
2949
2950 case 's':
2951 if (len == sizeof (".scl")-1
2952 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2953 && arg_was_number
2954 && arg_number < ((symint_t) C_MAX))
2955 {
2956 /* If the symbol is a static or external, we have
2957 already gotten the appropriate type and class, so
2958 make sure we don't override those values. This is
2959 needed because there are some type and classes that
2960 are not in COFF, such as short data, etc. */
2961 if (symbol_type == st_Nil)
2962 {
2963 symbol_type = map_coff_sym_type[arg_number];
2964 storage_class = map_coff_storage [arg_number];
2965 }
2966 break;
2967 }
2968
2969 else if (len == sizeof (".size")-1
2970 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2971 && arg_was_number)
2972 {
2973 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2974
2975 *t_ptr = arg_number;
2976 while (*arg_end_p1 == ',' && arg_was_number)
2977 {
2978 arg_start = arg_end_p1+1;
2979 ch = *arg_start;
2980 while (ch == ' ' || ch == '\t')
2981 ch = *++arg_start;
2982
2983 arg_was_number = 0;
2984 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2985 {
2986 int ch2;
2987 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2988 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2989 arg_was_number++;
2990
2991 if (t_ptr == &temp_array[0])
2992 {
2993 error_line = __LINE__;
2994 saber_stop ();
2995 goto bomb_out;
2996 }
2997
2998 *--t_ptr = arg_number;
2999 }
3000 }
3001
3002 /* Reverse order of sizes. */
3003 while (t_ptr <= &temp_array[ N_TQ-1 ])
3004 {
3005 if (t.num_sizes >= N_TQ-1)
3006 {
3007 error_line = __LINE__;
3008 saber_stop ();
3009 goto bomb_out;
3010 }
3011
3012 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3013 }
3014 break;
3015 }
3016
3017 else
3018 {
3019 error_line = __LINE__;
3020 saber_stop ();
3021 goto bomb_out;
3022 }
3023
3024
3025 case 't':
3026 if (len == sizeof (".type")-1
3027 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3028 && arg_was_number)
3029 {
3030 tq_t *tq_ptr = &t.type_qualifiers[0];
3031
3032 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3033 t.basic_type = map_coff_types [(int) t.orig_type];
3034 for (i = N_TQ-1; i >= 0; i--)
3035 {
3036 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3037 & N_TMASK);
3038
3039 if (dt != (int) DT_NON)
3040 *tq_ptr++ = map_coff_derived_type [dt];
3041 }
3042
3043 /* If this is a function, ignore it, so that we don't get
3044 two entries (one from the .ent, and one for the .def
3045 that precedes it). Save the type information so that
3046 the end block can properly add it after the begin block
3047 index. For MIPS knows what reason, we must strip off
3048 the function type at this point. */
3049 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3050 {
3051 is_function = 1;
3052 tq_ptr[-1] = tq_Nil;
3053 }
3054
3055 break;
3056 }
3057
3058 else if (len == sizeof (".tag")-1
3059 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3060 {
3061 tag_start = arg_start;
3062 tag_end_p1 = arg_end_p1;
3063 break;
3064 }
3065
3066 else
3067 {
3068 error_line = __LINE__;
3069 saber_stop ();
3070 goto bomb_out;
3071 }
3072
3073
3074 case 'v':
3075 if (len == sizeof (".val")-1
3076 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3077 {
3078 if (arg_was_number)
3079 value = arg_number;
3080
3081 /* If the value is not an integer value, it must be the
3082 name of a static or global item. Look up the name in
3083 the original symbol table to pick up the storage
3084 class, symbol type, etc. */
3085 else
3086 {
3087 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3088 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3089
3090 ext_hash_ptr = hash_string (arg_start,
3091 arg_end_p1 - arg_start,
3092 &ext_str_hash[0],
3093 (symint_t *) 0);
3094
3095 if (ext_hash_ptr != (shash_t *) 0
3096 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3097 eptr = ext_hash_ptr->esym_ptr;
3098
3099 orig_hash_ptr = hash_string (arg_start,
3100 arg_end_p1 - arg_start,
3101 &orig_str_hash[0],
3102 (symint_t *) 0);
3103
3104 if ((orig_hash_ptr == (shash_t *) 0
3105 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3106 && eptr == (EXTR *) 0)
3107 {
3108 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3109 (int) (arg_end_p1 - arg_start),
3110 arg_start);
3111 value = 0;
3112 }
3113 else
3114 {
3115 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3116 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3117 ? orig_hash_ptr->sym_ptr
3118 : &eptr->asym;
3119
3120 symbol_type = (st_t) ptr->st;
3121 storage_class = (sc_t) ptr->sc;
3122 value = ptr->value;
3123 }
3124 }
3125 break;
3126 }
3127 else
3128 {
3129 error_line = __LINE__;
3130 saber_stop ();
3131 goto bomb_out;
3132 }
3133 }
3134
3135 /* Set up to find next directive. */
3136 dir_start = arg_end_p1 + 1;
3137 }
3138
3139
3140 if (storage_class == sc_Bits)
3141 {
3142 t.bitfield = 1;
3143 t.extra_sizes = 1;
3144 }
3145 else
3146 t.extra_sizes = 0;
3147
3148 if (t.num_dims > 0)
3149 {
3150 int num_real_sizes = t.num_sizes - t.extra_sizes;
3151 int diff = t.num_dims - num_real_sizes;
3152 int i = t.num_dims - 1;
3153 int j;
3154
3155 if (num_real_sizes != 1 || diff < 0)
3156 {
3157 error_line = __LINE__;
3158 saber_stop ();
3159 goto bomb_out;
3160 }
3161
3162 /* If this is an array, make sure the same number of dimensions
3163 and sizes were passed, creating extra sizes for multiply
3164 dimensioned arrays if not passed. */
3165
3166 if (diff)
3167 {
3168 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3169 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3170
3171 t.num_sizes = i + 1;
3172 for ( i--; i >= 0; i-- )
3173 {
3174 if (t.dimensions[ i+1 ])
3175 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3176 else
3177 t.sizes[ i ] = t.sizes[ i+1 ];
3178 }
3179 }
3180 }
3181
3182 /* Except for enumeration members & begin/ending of scopes, put the
3183 type word in the aux. symbol table. */
3184
3185 if (symbol_type == st_Block || symbol_type == st_End)
3186 indx = 0;
3187
3188 else if (inside_enumeration)
3189 indx = cur_file_ptr->void_type;
3190
3191 else
3192 {
3193 if (t.basic_type == bt_Struct
3194 || t.basic_type == bt_Union
3195 || t.basic_type == bt_Enum)
3196 {
3197 if (tag_start == (char *) 0)
3198 {
3199 error ("no tag specified for %.*s",
3200 (int) (name_end_p1 - name_start),
3201 name_start);
3202 return;
3203 }
3204
3205 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3206 t.basic_type);
3207 }
3208
3209 if (is_function)
3210 {
3211 last_func_type_info = t;
3212 last_func_eptr = eptr;
3213 return;
3214 }
3215
3216 indx = add_aux_sym_tir (&t,
3217 hash_yes,
3218 &cur_file_ptr->thash_head[0]);
3219 }
3220
3221
3222 /* If this is an external or static symbol, update the appropriate
3223 external symbol. */
3224
3225 if (eptr != (EXTR *) 0
3226 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3227 {
3228 eptr->ifd = cur_file_ptr->file_index;
3229 eptr->asym.index = indx;
3230 }
3231
3232
3233 /* Do any last minute adjustments that are necessary. */
3234 switch (symbol_type)
3235 {
3236 default:
3237 break;
3238
3239
3240 /* For the beginning of structs, unions, and enumerations, the
3241 size info needs to be passed in the value field. */
3242
3243 case st_Block:
3244 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3245 {
3246 error_line = __LINE__;
3247 saber_stop ();
3248 goto bomb_out;
3249 }
3250
3251 else
3252 value = t.sizes[0];
3253
3254 inside_enumeration = (t.orig_type == T_ENUM);
3255 break;
3256
3257
3258 /* For the end of structs, unions, and enumerations, omit the
3259 name which is always ".eos". This needs to be done last, so
3260 that any error reporting above gives the correct name. */
3261
3262 case st_End:
3263 name_start = name_end_p1 = 0;
3264 value = inside_enumeration = 0;
3265 break;
3266
3267
3268 /* Members of structures and unions that aren't bitfields, need
3269 to adjust the value from a byte offset to a bit offset.
3270 Members of enumerations do not have the value adjusted, and
3271 can be distinguished by indx == indexNil. For enumerations,
3272 update the maximum enumeration value. */
3273
3274 case st_Member:
3275 if (!t.bitfield && !inside_enumeration)
3276 value *= 8;
3277
3278 break;
3279 }
3280
3281
3282 /* Add the symbol, except for global symbols outside of functions,
3283 for which the external symbol table is fine enough. */
3284
3285 if (eptr == (EXTR *) 0
3286 || eptr->asym.st == (int) st_Nil
3287 || cur_proc_ptr != (PDR *) 0)
3288 {
3289 symint_t isym = add_local_symbol (name_start, name_end_p1,
3290 symbol_type, storage_class,
3291 value,
3292 indx);
3293
3294 /* Deal with struct, union, and enum tags. */
3295 if (symbol_type == st_Block)
3296 {
3297 /* Create or update the tag information. */
3298 tag_t *tag_ptr = get_tag (name_start,
3299 name_end_p1,
3300 isym,
3301 t.basic_type);
3302
3303 /* If there are any forward references, fill in the appropriate
3304 file and symbol indexes. */
3305
3306 symint_t file_index = cur_file_ptr->file_index;
3307 forward_t *f_next = tag_ptr->forward_ref;
3308 forward_t *f_cur;
3309
3310 while (f_next != (forward_t *) 0)
3311 {
3312 f_cur = f_next;
3313 f_next = f_next->next;
3314
3315 f_cur->ifd_ptr->isym = file_index;
3316 f_cur->index_ptr->rndx.index = isym;
3317
3318 free_forward (f_cur);
3319 }
3320
3321 tag_ptr->forward_ref = (forward_t *) 0;
3322 }
3323 }
3324
3325 /* Normal return */
3326 return;
3327
3328 /* Error return, issue message. */
3329 bomb_out:
3330 if (error_line)
3331 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3332 else
3333 error ("compiler error, badly formed #.def");
3334
3335 return;
3336 }
3337
3338 \f
3339 /* Parse .end directives. */
3340
3341 STATIC void
3342 parse_end (const char *start)
3343 {
3344 const char *start_func, *end_func_p1;
3345 int ch;
3346 symint_t value;
3347 FDR *orig_fdr;
3348
3349 if (cur_file_ptr == (efdr_t *) 0)
3350 {
3351 error (".end directive without a preceding .file directive");
3352 return;
3353 }
3354
3355 if (cur_proc_ptr == (PDR *) 0)
3356 {
3357 error (".end directive without a preceding .ent directive");
3358 return;
3359 }
3360
3361 /* Get the function name, skipping whitespace. */
3362 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3363 ;
3364
3365 ch = *start_func;
3366 if (!IS_ASM_IDENT (ch))
3367 {
3368 error (".end directive has no name");
3369 return;
3370 }
3371
3372 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3373 ;
3374
3375
3376 /* Get the value field for creating the end from the original object
3377 file (which we find by locating the procedure start, and using the
3378 pointer to the end+1 block and backing up. The index points to a
3379 two word aux. symbol, whose first word is the index of the end
3380 symbol, and the second word is the type of the function return
3381 value. */
3382
3383 orig_fdr = cur_file_ptr->orig_fdr;
3384 value = 0;
3385 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3386 value = cur_oproc_end->value;
3387
3388 else
3389 error ("cannot find .end block for %.*s",
3390 (int) (end_func_p1 - start_func), start_func);
3391
3392 (void) add_local_symbol (start_func, end_func_p1,
3393 st_End, sc_Text,
3394 value,
3395 (symint_t) 0);
3396
3397 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3398 }
3399
3400 \f
3401 /* Parse .ent directives. */
3402
3403 STATIC void
3404 parse_ent (const char *start)
3405 {
3406 const char *start_func, *end_func_p1;
3407 int ch;
3408
3409 if (cur_file_ptr == (efdr_t *) 0)
3410 {
3411 error (".ent directive without a preceding .file directive");
3412 return;
3413 }
3414
3415 if (cur_proc_ptr != (PDR *) 0)
3416 {
3417 error ("second .ent directive found before .end directive");
3418 return;
3419 }
3420
3421 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3422 ;
3423
3424 ch = *start_func;
3425 if (!IS_ASM_IDENT (ch))
3426 {
3427 error (".ent directive has no name");
3428 return;
3429 }
3430
3431 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3432 ;
3433
3434 (void) add_procedure (start_func, end_func_p1);
3435 }
3436
3437 \f
3438 /* Parse .file directives. */
3439
3440 STATIC void
3441 parse_file (const char *start)
3442 {
3443 char *p;
3444 char *start_name, *end_name_p1;
3445
3446 (void) strtol (start, &p, 0);
3447 if (start == p
3448 || (start_name = strchr (p, '"')) == (char *) 0
3449 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3450 {
3451 error ("invalid .file directive");
3452 return;
3453 }
3454
3455 if (cur_proc_ptr != (PDR *) 0)
3456 {
3457 error ("no way to handle .file within .ent/.end section");
3458 return;
3459 }
3460
3461 add_file (start_name, end_name_p1);
3462 }
3463
3464 \f
3465 /* Make sure the @stabs symbol is emitted. */
3466
3467 static void
3468 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3469 {
3470 if (!stabs_seen)
3471 {
3472 /* Add a dummy @stabs symbol. */
3473 stabs_seen = 1;
3474 (void) add_local_symbol (stabs_symbol,
3475 stabs_symbol + sizeof (stabs_symbol),
3476 (st_t) stNil, (sc_t) scInfo, -1,
3477 MIPS_MARK_STAB (0));
3478
3479 }
3480 }
3481
3482 \f
3483 /* Parse .stabs directives.
3484
3485 .stabs directives have five fields:
3486 "string" a string, encoding the type information.
3487 code a numeric code, defined in <stab.h>
3488 0 a zero
3489 0 a zero or line number
3490 value a numeric value or an address.
3491
3492 If the value is relocatable, we transform this into:
3493 iss points as an index into string space
3494 value value from lookup of the name
3495 st st from lookup of the name
3496 sc sc from lookup of the name
3497 index code|CODE_MASK
3498
3499 If the value is not relocatable, we transform this into:
3500 iss points as an index into string space
3501 value value
3502 st st_Nil
3503 sc sc_Nil
3504 index code|CODE_MASK
3505
3506 .stabn directives have four fields (string is null):
3507 code a numeric code, defined in <stab.h>
3508 0 a zero
3509 0 a zero or a line number
3510 value a numeric value or an address. */
3511
3512 STATIC void
3513 parse_stabs_common (const char *string_start, /* start of string or NULL */
3514 const char *string_end, /* end+1 of string or NULL */
3515 const char *rest) /* rest of the directive. */
3516 {
3517 efdr_t *save_file_ptr = cur_file_ptr;
3518 symint_t code;
3519 symint_t value;
3520 char *p;
3521 st_t st;
3522 sc_t sc;
3523 int ch;
3524
3525 if (stabs_seen == 0)
3526 mark_stabs ("");
3527
3528 /* Read code from stabs. */
3529 if (!ISDIGIT (*rest))
3530 {
3531 error ("invalid .stabs/.stabn directive, code is non-numeric");
3532 return;
3533 }
3534
3535 code = strtol (rest, &p, 0);
3536
3537 /* Line number stabs are handled differently, since they have two values,
3538 the line number and the address of the label. We use the index field
3539 (aka code) to hold the line number, and the value field to hold the
3540 address. The symbol type is st_Label, which should be different from
3541 the other stabs, so that gdb can recognize it. */
3542
3543 if (code == (int) N_SLINE)
3544 {
3545 SYMR *sym_ptr, dummy_symr;
3546 shash_t *shash_ptr;
3547
3548 /* Skip ,0, */
3549 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3550 {
3551 error ("invalid line number .stabs/.stabn directive");
3552 return;
3553 }
3554
3555 code = strtol (p+3, &p, 0);
3556 ch = *++p;
3557 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3558 {
3559 error ("invalid line number .stabs/.stabn directive");
3560 return;
3561 }
3562
3563 dummy_symr.index = code;
3564 if (dummy_symr.index != code)
3565 {
3566 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3567 code);
3568
3569 return;
3570 }
3571
3572 shash_ptr = hash_string (p,
3573 strlen (p) - 1,
3574 &orig_str_hash[0],
3575 (symint_t *) 0);
3576
3577 if (shash_ptr == (shash_t *) 0
3578 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3579 {
3580 error ("invalid .stabs/.stabn directive, value not found");
3581 return;
3582 }
3583
3584 if ((st_t) sym_ptr->st != st_Label)
3585 {
3586 error ("invalid line number .stabs/.stabn directive");
3587 return;
3588 }
3589
3590 st = st_Label;
3591 sc = (sc_t) sym_ptr->sc;
3592 value = sym_ptr->value;
3593 }
3594 else
3595 {
3596 /* Skip ,<num>,<num>, */
3597 if (*p++ != ',')
3598 goto failure;
3599 for (; ISDIGIT (*p); p++)
3600 ;
3601 if (*p++ != ',')
3602 goto failure;
3603 for (; ISDIGIT (*p); p++)
3604 ;
3605 if (*p++ != ',')
3606 goto failure;
3607 ch = *p;
3608 if (!IS_ASM_IDENT (ch) && ch != '-')
3609 {
3610 failure:
3611 error ("invalid .stabs/.stabn directive, bad character");
3612 return;
3613 }
3614
3615 if (ISDIGIT (ch) || ch == '-')
3616 {
3617 st = st_Nil;
3618 sc = sc_Nil;
3619 value = strtol (p, &p, 0);
3620 if (*p != '\n')
3621 {
3622 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3623 return;
3624 }
3625 }
3626 else if (!IS_ASM_IDENT (ch))
3627 {
3628 error ("invalid .stabs/.stabn directive, bad character");
3629 return;
3630 }
3631 else
3632 {
3633 SYMR *sym_ptr;
3634 shash_t *shash_ptr;
3635 const char *start, *end_p1;
3636
3637 start = p;
3638 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3639 {
3640 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3641 end_p1 = start + strlen (start) - 1;
3642 }
3643
3644 shash_ptr = hash_string (start,
3645 end_p1 - start,
3646 &orig_str_hash[0],
3647 (symint_t *) 0);
3648
3649 if (shash_ptr == (shash_t *) 0
3650 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3651 {
3652 shash_ptr = hash_string (start,
3653 end_p1 - start,
3654 &ext_str_hash[0],
3655 (symint_t *) 0);
3656
3657 if (shash_ptr == (shash_t *) 0
3658 || shash_ptr->esym_ptr == (EXTR *) 0)
3659 {
3660 error ("invalid .stabs/.stabn directive, value not found");
3661 return;
3662 }
3663 else
3664 sym_ptr = &(shash_ptr->esym_ptr->asym);
3665 }
3666
3667 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3668 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3669 {
3670 sc = (sc_t) scNil;
3671 st = (st_t) stNil;
3672 }
3673 else
3674 {
3675 sc = (sc_t) sym_ptr->sc;
3676 st = (st_t) sym_ptr->st;
3677 }
3678 value = sym_ptr->value;
3679
3680 ch = *end_p1++;
3681 if (ch != '\n')
3682 {
3683 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3684 || ((ch != '+') && (ch != '-')))
3685 {
3686 error ("invalid .stabs/.stabn directive, badly formed value");
3687 return;
3688 }
3689 if (ch == '+')
3690 value += strtol (end_p1, &p, 0);
3691 else if (ch == '-')
3692 value -= strtol (end_p1, &p, 0);
3693
3694 if (*p != '\n')
3695 {
3696 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3697 return;
3698 }
3699 }
3700 }
3701 code = MIPS_MARK_STAB (code);
3702 }
3703
3704 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3705 /* Restore normal file type. */
3706 cur_file_ptr = save_file_ptr;
3707 }
3708
3709
3710 STATIC void
3711 parse_stabs (const char *start)
3712 {
3713 const char *end = strchr (start+1, '"');
3714
3715 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3716 {
3717 error ("invalid .stabs directive, no string");
3718 return;
3719 }
3720
3721 parse_stabs_common (start+1, end, end+2);
3722 }
3723
3724
3725 STATIC void
3726 parse_stabn (const char *start)
3727 {
3728 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3729 }
3730
3731 \f
3732 /* Parse the input file, and write the lines to the output file
3733 if needed. */
3734
3735 STATIC void
3736 parse_input (void)
3737 {
3738 char *p;
3739 Size_t i;
3740 thead_t *ptag_head;
3741 tag_t *ptag;
3742 tag_t *ptag_next;
3743
3744 if (debug)
3745 fprintf (stderr, "\tinput\n");
3746
3747 /* Add a dummy scope block around the entire compilation unit for
3748 structures defined outside of blocks. */
3749 ptag_head = allocate_thead ();
3750 ptag_head->first_tag = 0;
3751 ptag_head->prev = cur_tag_head;
3752 cur_tag_head = ptag_head;
3753
3754 while ((p = read_line ()) != (char *) 0)
3755 {
3756 /* Skip leading blanks. */
3757 while (ISSPACE ((unsigned char)*p))
3758 p++;
3759
3760 /* See if it's a directive we handle. If so, dispatch handler. */
3761 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3762 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3763 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3764 {
3765 p += pseudo_ops[i].len; /* skip to first argument */
3766 while (ISSPACE ((unsigned char)*p))
3767 p++;
3768
3769 (*pseudo_ops[i].func)( p );
3770 break;
3771 }
3772 }
3773
3774 /* Process any tags at global level. */
3775 ptag_head = cur_tag_head;
3776 cur_tag_head = ptag_head->prev;
3777
3778 for (ptag = ptag_head->first_tag;
3779 ptag != (tag_t *) 0;
3780 ptag = ptag_next)
3781 {
3782 if (ptag->forward_ref != (forward_t *) 0)
3783 add_unknown_tag (ptag);
3784
3785 ptag_next = ptag->same_block;
3786 ptag->hash_ptr->tag_ptr = ptag->same_name;
3787 free_tag (ptag);
3788 }
3789
3790 free_thead (ptag_head);
3791
3792 }
3793
3794 \f
3795 /* Update the global headers with the final offsets in preparation
3796 to write out the .T file. */
3797
3798 STATIC void
3799 update_headers (void)
3800 {
3801 symint_t i;
3802 efdr_t *file_ptr;
3803
3804 /* Set up the symbolic header. */
3805 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3806 symbolic_header.magic = orig_sym_hdr.magic;
3807 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3808
3809 /* Set up global counts. */
3810 symbolic_header.issExtMax = ext_strings.num_allocated;
3811 symbolic_header.idnMax = dense_num.num_allocated;
3812 symbolic_header.ifdMax = file_desc.num_allocated;
3813 symbolic_header.iextMax = ext_symbols.num_allocated;
3814 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3815 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3816 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3817 symbolic_header.crfd = orig_sym_hdr.crfd;
3818
3819
3820 /* Loop through each file, figuring out how many local syms,
3821 line numbers, etc. there are. Also, put out end symbol
3822 for the filename. */
3823
3824 for (file_ptr = first_file;
3825 file_ptr != (efdr_t *) 0;
3826 file_ptr = file_ptr->next_file)
3827 {
3828 SYMR *sym_start;
3829 SYMR *sym;
3830 SYMR *sym_end_p1;
3831 FDR *fd_ptr = file_ptr->orig_fdr;
3832
3833 cur_file_ptr = file_ptr;
3834
3835 /* Copy st_Static symbols from the original local symbol table if
3836 they did not get added to the new local symbol table.
3837 This happens with stabs-in-ecoff or if the source file is
3838 compiled without debugging. */
3839 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3840 sym_end_p1 = sym_start + fd_ptr->csym;
3841 for (sym = sym_start; sym < sym_end_p1; sym++)
3842 {
3843 if ((st_t) sym->st == st_Static)
3844 {
3845 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3846 Size_t len = strlen (str);
3847 shash_t *hash_ptr;
3848
3849 /* Ignore internal labels. */
3850 if (str[0] == '$' && str[1] == 'L')
3851 continue;
3852 hash_ptr = hash_string (str,
3853 (Ptrdiff_t) len,
3854 &file_ptr->shash_head[0],
3855 (symint_t *) 0);
3856 if (hash_ptr == (shash_t *) 0)
3857 {
3858 (void) add_local_symbol (str, str + len,
3859 (st_t) sym->st, (sc_t) sym->sc,
3860 (symint_t) sym->value,
3861 (symint_t) indexNil);
3862 }
3863 }
3864 }
3865 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3866 st_End, sc_Text,
3867 (symint_t) 0,
3868 (symint_t) 0);
3869
3870 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3871 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3872 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3873
3874 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3875 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3876 symbolic_header.isymMax += file_ptr->fdr.csym;
3877
3878 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3879 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3880 symbolic_header.iauxMax += file_ptr->fdr.caux;
3881
3882 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3883 file_ptr->fdr.issBase = symbolic_header.issMax;
3884 symbolic_header.issMax += file_ptr->fdr.cbSs;
3885 }
3886
3887 #ifndef ALIGN_SYMTABLE_OFFSET
3888 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3889 #endif
3890
3891 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3892 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3893 if (i > 0)
3894 {
3895 symbolic_header.cbLineOffset = file_offset;
3896 file_offset += i;
3897 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3898 }
3899
3900 i = symbolic_header.ioptMax; /* optimization symbols */
3901 if (((long) i) > 0)
3902 {
3903 symbolic_header.cbOptOffset = file_offset;
3904 file_offset += i * sizeof (OPTR);
3905 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3906 }
3907
3908 i = symbolic_header.idnMax; /* dense numbers */
3909 if (i > 0)
3910 {
3911 symbolic_header.cbDnOffset = file_offset;
3912 file_offset += i * sizeof (DNR);
3913 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3914 }
3915
3916 i = symbolic_header.ipdMax; /* procedure tables */
3917 if (i > 0)
3918 {
3919 symbolic_header.cbPdOffset = file_offset;
3920 file_offset += i * sizeof (PDR);
3921 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3922 }
3923
3924 i = symbolic_header.isymMax; /* local symbols */
3925 if (i > 0)
3926 {
3927 symbolic_header.cbSymOffset = file_offset;
3928 file_offset += i * sizeof (SYMR);
3929 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3930 }
3931
3932 i = symbolic_header.iauxMax; /* aux syms. */
3933 if (i > 0)
3934 {
3935 symbolic_header.cbAuxOffset = file_offset;
3936 file_offset += i * sizeof (TIR);
3937 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3938 }
3939
3940 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3941 if (i > 0)
3942 {
3943 symbolic_header.cbSsOffset = file_offset;
3944 file_offset += i;
3945 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3946 }
3947
3948 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3949 if (i > 0)
3950 {
3951 symbolic_header.cbSsExtOffset = file_offset;
3952 file_offset += i;
3953 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3954 }
3955
3956 i = symbolic_header.ifdMax; /* file tables */
3957 if (i > 0)
3958 {
3959 symbolic_header.cbFdOffset = file_offset;
3960 file_offset += i * sizeof (FDR);
3961 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3962 }
3963
3964 i = symbolic_header.crfd; /* relative file descriptors */
3965 if (i > 0)
3966 {
3967 symbolic_header.cbRfdOffset = file_offset;
3968 file_offset += i * sizeof (symint_t);
3969 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3970 }
3971
3972 i = symbolic_header.iextMax; /* external symbols */
3973 if (i > 0)
3974 {
3975 symbolic_header.cbExtOffset = file_offset;
3976 file_offset += i * sizeof (EXTR);
3977 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3978 }
3979 }
3980
3981 \f
3982 /* Write out a varray at a given location. */
3983
3984 STATIC void
3985 write_varray (varray_t *vp, /* virtual array */
3986 off_t offset, /* offset to write varray to */
3987 const char *str) /* string to print out when tracing */
3988 {
3989 int num_write, sys_write;
3990 vlinks_t *ptr;
3991
3992 if (vp->num_allocated == 0)
3993 return;
3994
3995 if (debug)
3996 fprintf (stderr, "\twarray\tvp = " HOST_PTR_PRINTF
3997 ", offset = %7lu, size = %7lu, %s\n",
3998 (void *) vp, (unsigned long) offset,
3999 vp->num_allocated * vp->object_size, str);
4000
4001 if (file_offset != (unsigned long) offset
4002 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4003 pfatal_with_name (object_name);
4004
4005 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4006 {
4007 num_write = (ptr->next == (vlinks_t *) 0)
4008 ? vp->objects_last_page * vp->object_size
4009 : vp->objects_per_page * vp->object_size;
4010
4011 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4012 if (sys_write <= 0)
4013 pfatal_with_name (object_name);
4014
4015 else if (sys_write != num_write)
4016 fatal ("wrote %d bytes to %s, system returned %d",
4017 num_write,
4018 object_name,
4019 sys_write);
4020
4021 file_offset += num_write;
4022 }
4023 }
4024
4025 \f
4026 /* Write out the symbol table in the object file. */
4027
4028 STATIC void
4029 write_object (void)
4030 {
4031 int sys_write;
4032 efdr_t *file_ptr;
4033 off_t offset;
4034
4035 if (debug)
4036 fprintf (stderr, "\n\twrite\tvp = " HOST_PTR_PRINTF
4037 ", offset = %7u, size = %7lu, %s\n",
4038 (void *) &symbolic_header, 0,
4039 (unsigned long) sizeof (symbolic_header), "symbolic header");
4040
4041 sys_write = fwrite (&symbolic_header,
4042 1,
4043 sizeof (symbolic_header),
4044 object_stream);
4045
4046 if (sys_write < 0)
4047 pfatal_with_name (object_name);
4048
4049 else if (sys_write != sizeof (symbolic_header))
4050 fatal ("wrote %d bytes to %s, system returned %d",
4051 (int) sizeof (symbolic_header),
4052 object_name,
4053 sys_write);
4054
4055
4056 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4057
4058 if (symbolic_header.cbLine > 0) /* line numbers */
4059 {
4060 long sys_write;
4061
4062 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4063 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4064 pfatal_with_name (object_name);
4065
4066 if (debug)
4067 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4068 ", offset = %7lu, size = %7lu, %s\n",
4069 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4070 (long) symbolic_header.cbLine, "Line numbers");
4071
4072 sys_write = fwrite (orig_linenum,
4073 1,
4074 symbolic_header.cbLine,
4075 object_stream);
4076
4077 if (sys_write <= 0)
4078 pfatal_with_name (object_name);
4079
4080 else if (sys_write != symbolic_header.cbLine)
4081 fatal ("wrote %ld bytes to %s, system returned %ld",
4082 (long) symbolic_header.cbLine,
4083 object_name,
4084 sys_write);
4085
4086 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4087 }
4088
4089 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4090 {
4091 long sys_write;
4092 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4093
4094 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4095 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4096 pfatal_with_name (object_name);
4097
4098 if (debug)
4099 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4100 ", offset = %7lu, size = %7lu, %s\n",
4101 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4102 num_write, "Optimizer symbols");
4103
4104 sys_write = fwrite (orig_opt_syms,
4105 1,
4106 num_write,
4107 object_stream);
4108
4109 if (sys_write <= 0)
4110 pfatal_with_name (object_name);
4111
4112 else if (sys_write != num_write)
4113 fatal ("wrote %ld bytes to %s, system returned %ld",
4114 num_write,
4115 object_name,
4116 sys_write);
4117
4118 file_offset = symbolic_header.cbOptOffset + num_write;
4119 }
4120
4121 if (symbolic_header.idnMax > 0) /* dense numbers */
4122 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4123
4124 if (symbolic_header.ipdMax > 0) /* procedure tables */
4125 {
4126 offset = symbolic_header.cbPdOffset;
4127 for (file_ptr = first_file;
4128 file_ptr != (efdr_t *) 0;
4129 file_ptr = file_ptr->next_file)
4130 {
4131 write_varray (&file_ptr->procs, offset, "Procedure tables");
4132 offset = file_offset;
4133 }
4134 }
4135
4136 if (symbolic_header.isymMax > 0) /* local symbols */
4137 {
4138 offset = symbolic_header.cbSymOffset;
4139 for (file_ptr = first_file;
4140 file_ptr != (efdr_t *) 0;
4141 file_ptr = file_ptr->next_file)
4142 {
4143 write_varray (&file_ptr->symbols, offset, "Local symbols");
4144 offset = file_offset;
4145 }
4146 }
4147
4148 if (symbolic_header.iauxMax > 0) /* aux symbols */
4149 {
4150 offset = symbolic_header.cbAuxOffset;
4151 for (file_ptr = first_file;
4152 file_ptr != (efdr_t *) 0;
4153 file_ptr = file_ptr->next_file)
4154 {
4155 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4156 offset = file_offset;
4157 }
4158 }
4159
4160 if (symbolic_header.issMax > 0) /* local strings */
4161 {
4162 offset = symbolic_header.cbSsOffset;
4163 for (file_ptr = first_file;
4164 file_ptr != (efdr_t *) 0;
4165 file_ptr = file_ptr->next_file)
4166 {
4167 write_varray (&file_ptr->strings, offset, "Local strings");
4168 offset = file_offset;
4169 }
4170 }
4171
4172 if (symbolic_header.issExtMax > 0) /* external strings */
4173 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4174
4175 if (symbolic_header.ifdMax > 0) /* file tables */
4176 {
4177 offset = symbolic_header.cbFdOffset;
4178 if (file_offset != (unsigned long) offset
4179 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4180 pfatal_with_name (object_name);
4181
4182 file_offset = offset;
4183 for (file_ptr = first_file;
4184 file_ptr != (efdr_t *) 0;
4185 file_ptr = file_ptr->next_file)
4186 {
4187 if (debug)
4188 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4189 ", offset = %7lu, size = %7lu, %s\n",
4190 (void *) &file_ptr->fdr, file_offset,
4191 (unsigned long) sizeof (FDR), "File header");
4192
4193 sys_write = fwrite (&file_ptr->fdr,
4194 1,
4195 sizeof (FDR),
4196 object_stream);
4197
4198 if (sys_write < 0)
4199 pfatal_with_name (object_name);
4200
4201 else if (sys_write != sizeof (FDR))
4202 fatal ("wrote %d bytes to %s, system returned %d",
4203 (int) sizeof (FDR),
4204 object_name,
4205 sys_write);
4206
4207 file_offset = offset += sizeof (FDR);
4208 }
4209 }
4210
4211 if (symbolic_header.crfd > 0) /* relative file descriptors */
4212 {
4213 long sys_write;
4214 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4215
4216 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4217 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4218 pfatal_with_name (object_name);
4219
4220 if (debug)
4221 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4222 ", offset = %7lu, size = %7lu, %s\n",
4223 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4224 num_write, "Relative file descriptors");
4225
4226 sys_write = fwrite (orig_rfds,
4227 1,
4228 num_write,
4229 object_stream);
4230
4231 if (sys_write <= 0)
4232 pfatal_with_name (object_name);
4233
4234 else if (sys_write != (long) num_write)
4235 fatal ("wrote %lu bytes to %s, system returned %ld",
4236 num_write,
4237 object_name,
4238 sys_write);
4239
4240 file_offset = symbolic_header.cbRfdOffset + num_write;
4241 }
4242
4243 if (symbolic_header.issExtMax > 0) /* external symbols */
4244 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4245
4246 if (fclose (object_stream) != 0)
4247 pfatal_with_name (object_name);
4248 }
4249
4250 \f
4251 /* Read some bytes at a specified location, and return a pointer. */
4252
4253 STATIC page_t *
4254 read_seek (Size_t size, /* # bytes to read */
4255 off_t offset, /* offset to read at */
4256 const char *str) /* name for tracing */
4257 {
4258 page_t *ptr;
4259 long sys_read = 0;
4260
4261 if (size == 0) /* nothing to read */
4262 return (page_t *) 0;
4263
4264 if (debug)
4265 fprintf (stderr,
4266 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4267 (unsigned long) size, (unsigned long) offset, file_offset, str);
4268
4269 #ifndef MALLOC_CHECK
4270 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4271 #else
4272 ptr = xcalloc (1, size);
4273 #endif
4274
4275 /* If we need to seek, and the distance is nearby, just do some reads,
4276 to speed things up. */
4277 if (file_offset != (unsigned long) offset)
4278 {
4279 symint_t difference = offset - file_offset;
4280
4281 if (difference < 8)
4282 {
4283 char small_buffer[8];
4284
4285 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4286 if (sys_read <= 0)
4287 pfatal_with_name (obj_in_name);
4288
4289 if ((symint_t) sys_read != difference)
4290 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4291 (unsigned long) size,
4292 obj_in_name,
4293 sys_read);
4294 }
4295 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4296 pfatal_with_name (obj_in_name);
4297 }
4298
4299 sys_read = fread (ptr, 1, size, obj_in_stream);
4300 if (sys_read <= 0)
4301 pfatal_with_name (obj_in_name);
4302
4303 if (sys_read != (long) size)
4304 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4305 (unsigned long) size,
4306 obj_in_name,
4307 sys_read);
4308
4309 file_offset = offset + size;
4310
4311 if (file_offset > max_file_offset)
4312 max_file_offset = file_offset;
4313
4314 return ptr;
4315 }
4316
4317 \f
4318 /* Read the existing object file (and copy to the output object file
4319 if it is different from the input object file), and remove the old
4320 symbol table. */
4321
4322 STATIC void
4323 copy_object (void)
4324 {
4325 char buffer[ PAGE_SIZE ];
4326 int sys_read;
4327 int remaining;
4328 int num_write;
4329 int sys_write;
4330 int fd, es;
4331 int delete_ifd = 0;
4332 int *remap_file_number;
4333 struct stat stat_buf;
4334
4335 if (debug)
4336 fprintf (stderr, "\tcopy\n");
4337
4338 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4339 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4340 pfatal_with_name (obj_in_name);
4341
4342 sys_read = fread (&orig_file_header,
4343 1,
4344 sizeof (struct filehdr),
4345 obj_in_stream);
4346
4347 if (sys_read < 0)
4348 pfatal_with_name (obj_in_name);
4349
4350 else if (sys_read == 0 && feof (obj_in_stream))
4351 return; /* create a .T file sans file header */
4352
4353 else if (sys_read < (int) sizeof (struct filehdr))
4354 fatal ("wanted to read %d bytes from %s, system returned %d",
4355 (int) sizeof (struct filehdr),
4356 obj_in_name,
4357 sys_read);
4358
4359
4360 if (orig_file_header.f_nsyms != sizeof (HDRR))
4361 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4362 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4363
4364
4365 /* Read in the current symbolic header. */
4366 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4367 pfatal_with_name (input_name);
4368
4369 sys_read = fread (&orig_sym_hdr,
4370 1,
4371 sizeof (orig_sym_hdr),
4372 obj_in_stream);
4373
4374 if (sys_read < 0)
4375 pfatal_with_name (object_name);
4376
4377 else if (sys_read < (int) sizeof (struct filehdr))
4378 fatal ("wanted to read %d bytes from %s, system returned %d",
4379 (int) sizeof (struct filehdr),
4380 obj_in_name,
4381 sys_read);
4382
4383
4384 /* Read in each of the sections if they exist in the object file.
4385 We read things in the order the mips assembler creates the
4386 sections, so in theory no extra seeks are done.
4387
4388 For simplicity sake, round each read up to a page boundary,
4389 we may want to revisit this later.... */
4390
4391 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4392
4393 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4394 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4395 orig_sym_hdr.cbLineOffset,
4396 "Line numbers");
4397
4398 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4399 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4400 orig_sym_hdr.cbPdOffset,
4401 "Procedure tables");
4402
4403 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4404 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4405 orig_sym_hdr.cbSymOffset,
4406 "Local symbols");
4407
4408 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4409 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4410 orig_sym_hdr.cbAuxOffset,
4411 "Aux. symbols");
4412
4413 if (orig_sym_hdr.issMax > 0) /* local strings */
4414 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4415 orig_sym_hdr.cbSsOffset,
4416 "Local strings");
4417
4418 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4419 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4420 orig_sym_hdr.cbSsExtOffset,
4421 "External strings");
4422
4423 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4424 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4425 orig_sym_hdr.cbFdOffset,
4426 "File tables");
4427
4428 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4429 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4430 orig_sym_hdr.cbRfdOffset,
4431 "Relative file descriptors");
4432
4433 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4434 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4435 orig_sym_hdr.cbExtOffset,
4436 "External symbols");
4437
4438 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4439 {
4440 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4441 orig_sym_hdr.cbDnOffset,
4442 "Dense numbers");
4443
4444 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4445 }
4446
4447 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4448 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4449 orig_sym_hdr.cbOptOffset,
4450 "Optimizer symbols");
4451
4452
4453
4454 /* The symbol table should be last. */
4455 if (max_file_offset != (unsigned long) stat_buf.st_size)
4456 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4457 max_file_offset,
4458 (long) stat_buf.st_size);
4459
4460
4461 /* If the first original file descriptor is a dummy which the assembler
4462 put out, but there are no symbols in it, skip it now. */
4463 if (orig_sym_hdr.ifdMax > 1
4464 && orig_files->csym == 2
4465 && orig_files->caux == 0)
4466 {
4467 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4468 char *suffix = strrchr (filename, '.');
4469
4470 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4471 delete_ifd = 1;
4472 }
4473
4474
4475 /* Create array to map original file numbers to the new file numbers
4476 (in case there are duplicate filenames, we collapse them into one
4477 file section, the MIPS assembler may or may not collapse them). */
4478
4479 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4480
4481 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4482 {
4483 FDR *fd_ptr = ORIG_FILES (fd);
4484 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4485
4486 /* file support itself. */
4487 add_file (filename, filename + strlen (filename));
4488 remap_file_number[fd] = cur_file_ptr->file_index;
4489 }
4490
4491 if (delete_ifd > 0) /* just in case */
4492 remap_file_number[0] = remap_file_number[1];
4493
4494
4495 /* Loop, adding each of the external symbols. These must be in
4496 order or otherwise we would have to change the relocation
4497 entries. We don't just call add_bytes, because we need to have
4498 the names put into the external hash table. We set the type to
4499 'void' for now, and parse_def will fill in the correct type if it
4500 is in the symbol table. We must add the external symbols before
4501 the locals, since the locals do lookups against the externals. */
4502
4503 if (debug)
4504 fprintf (stderr, "\tehash\n");
4505
4506 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4507 {
4508 EXTR *eptr = orig_ext_syms + es;
4509 int ifd = eptr->ifd;
4510
4511 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4512 ? remap_file_number[ ifd ] : ifd );
4513 }
4514
4515
4516 /* For each of the files in the object file, copy the symbols, and such
4517 into the varrays for the new object file. */
4518
4519 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4520 {
4521 FDR *fd_ptr = ORIG_FILES (fd);
4522 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4523 SYMR *sym_start;
4524 SYMR *sym;
4525 SYMR *sym_end_p1;
4526 PDR *proc_start;
4527 PDR *proc;
4528 PDR *proc_end_p1;
4529
4530 /* file support itself. */
4531 add_file (filename, filename + strlen (filename));
4532 cur_file_ptr->orig_fdr = fd_ptr;
4533
4534 /* Copy stuff that's just passed through (such as line #'s) */
4535 cur_file_ptr->fdr.adr = fd_ptr->adr;
4536 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4537 cur_file_ptr->fdr.cline = fd_ptr->cline;
4538 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4539 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4540 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4541 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4542 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4543 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4544 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4545
4546 if (debug)
4547 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4548
4549 /* For each of the static and global symbols defined, add them
4550 to the hash table of original symbols, so we can look up
4551 their values. */
4552
4553 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4554 sym_end_p1 = sym_start + fd_ptr->csym;
4555 for (sym = sym_start; sym < sym_end_p1; sym++)
4556 {
4557 switch ((st_t) sym->st)
4558 {
4559 default:
4560 break;
4561
4562 case st_Global:
4563 case st_Static:
4564 case st_Label:
4565 case st_Proc:
4566 case st_StaticProc:
4567 {
4568 auto symint_t hash_index;
4569 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4570 Size_t len = strlen (str);
4571 shash_t *shash_ptr = hash_string (str,
4572 (Ptrdiff_t) len,
4573 &orig_str_hash[0],
4574 &hash_index);
4575
4576 if (shash_ptr != (shash_t *) 0)
4577 error ("internal error, %s is already in original symbol table", str);
4578
4579 else
4580 {
4581 shash_ptr = allocate_shash ();
4582 shash_ptr->next = orig_str_hash[hash_index];
4583 orig_str_hash[hash_index] = shash_ptr;
4584
4585 shash_ptr->len = len;
4586 shash_ptr->indx = indexNil;
4587 shash_ptr->string = str;
4588 shash_ptr->sym_ptr = sym;
4589 }
4590 }
4591 break;
4592
4593 case st_End:
4594 if ((sc_t) sym->sc == sc_Text)
4595 {
4596 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4597
4598 if (*str != '\0')
4599 {
4600 Size_t len = strlen (str);
4601 shash_t *shash_ptr = hash_string (str,
4602 (Ptrdiff_t) len,
4603 &orig_str_hash[0],
4604 (symint_t *) 0);
4605
4606 if (shash_ptr != (shash_t *) 0)
4607 shash_ptr->end_ptr = sym;
4608 }
4609 }
4610 break;
4611
4612 }
4613 }
4614
4615 if (debug)
4616 {
4617 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4618 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4619 }
4620
4621 /* Go through each of the procedures in this file, and add the
4622 procedure pointer to the hash entry for the given name. */
4623
4624 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4625 proc_end_p1 = proc_start + fd_ptr->cpd;
4626 for (proc = proc_start; proc < proc_end_p1; proc++)
4627 {
4628 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4629 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4630 Size_t len = strlen (str);
4631 shash_t *shash_ptr = hash_string (str,
4632 (Ptrdiff_t) len,
4633 &orig_str_hash[0],
4634 (symint_t *) 0);
4635
4636 if (shash_ptr == (shash_t *) 0)
4637 error ("internal error, function %s is not in original symbol table", str);
4638
4639 else
4640 shash_ptr->proc_ptr = proc;
4641 }
4642
4643 if (debug)
4644 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4645
4646 }
4647 cur_file_ptr = first_file;
4648
4649
4650 /* Copy all of the object file up to the symbol table. Originally
4651 we were going to use ftruncate, but that doesn't seem to work
4652 on Ultrix 3.1.... */
4653
4654 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4655 pfatal_with_name (obj_in_name);
4656
4657 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4658 pfatal_with_name (object_name);
4659
4660 for (remaining = orig_file_header.f_symptr;
4661 remaining > 0;
4662 remaining -= num_write)
4663 {
4664 num_write
4665 = (remaining <= (int) sizeof (buffer))
4666 ? remaining : (int) sizeof (buffer);
4667 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4668 if (sys_read <= 0)
4669 pfatal_with_name (obj_in_name);
4670
4671 else if (sys_read != num_write)
4672 fatal ("wanted to read %d bytes from %s, system returned %d",
4673 num_write,
4674 obj_in_name,
4675 sys_read);
4676
4677 sys_write = fwrite (buffer, 1, num_write, object_stream);
4678 if (sys_write <= 0)
4679 pfatal_with_name (object_name);
4680
4681 else if (sys_write != num_write)
4682 fatal ("wrote %d bytes to %s, system returned %d",
4683 num_write,
4684 object_name,
4685 sys_write);
4686 }
4687 }
4688
4689 \f
4690 /* Ye olde main program. */
4691
4692 extern int main (int, char **);
4693
4694 int
4695 main (int argc, char **argv)
4696 {
4697 int iflag = 0;
4698 char *p = strrchr (argv[0], '/');
4699 char *num_end;
4700 int option;
4701 int i;
4702
4703 progname = (p != 0) ? p+1 : argv[0];
4704
4705 (void) signal (SIGSEGV, catch_signal);
4706 (void) signal (SIGBUS, catch_signal);
4707 (void) signal (SIGABRT, catch_signal);
4708
4709 #if !defined(__SABER__) && !defined(lint)
4710 if (sizeof (efdr_t) > PAGE_USIZE)
4711 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4712 (int) sizeof (efdr_t),
4713 (int) PAGE_USIZE);
4714
4715 if (sizeof (page_t) != PAGE_USIZE)
4716 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4717 (int) sizeof (page_t),
4718 (int) PAGE_USIZE);
4719
4720 #endif
4721
4722 alloc_counts[ alloc_type_none ].alloc_name = "none";
4723 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4724 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4725 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4726 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4727 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4728 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4729 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4730 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4731
4732 int_type_info = type_info_init;
4733 int_type_info.basic_type = bt_Int;
4734
4735 void_type_info = type_info_init;
4736 void_type_info.basic_type = bt_Void;
4737
4738 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4739 switch (option)
4740 {
4741 default:
4742 had_errors++;
4743 break;
4744
4745 case 'd':
4746 debug = strtol (optarg, &num_end, 0);
4747 if ((unsigned) debug > 4 || num_end == optarg)
4748 had_errors++;
4749
4750 break;
4751
4752 case 'I':
4753 if (rename_output || obj_in_name != (char *) 0)
4754 had_errors++;
4755 else
4756 rename_output = 1;
4757
4758 /* Fall through to 'i' case. */
4759
4760 case 'i':
4761 if (obj_in_name == (char *) 0)
4762 {
4763 obj_in_name = optarg;
4764 iflag++;
4765 }
4766 else
4767 had_errors++;
4768 break;
4769
4770 case 'o':
4771 if (object_name == (char *) 0)
4772 object_name = optarg;
4773 else
4774 had_errors++;
4775 break;
4776
4777 case 'v':
4778 verbose++;
4779 break;
4780
4781 case 'V':
4782 version++;
4783 break;
4784 }
4785
4786 if (version)
4787 {
4788 printf (_("mips-tfile %s%s\n"), pkgversion_string, version_string);
4789 fputs ("Copyright (C) 2010 Free Software Foundation, Inc.\n", stdout);
4790 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4791 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4792 stdout);
4793 exit (0);
4794 }
4795
4796 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4797 obj_in_name = argv[--argc];
4798
4799 if (object_name == (char *) 0 && optind <= argc - 2)
4800 object_name = argv[--argc];
4801
4802 /* If there is an output name, but no input name use
4803 the same file for both, deleting the name between
4804 opening it for input and opening it for output. */
4805 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4806 {
4807 obj_in_name = object_name;
4808 delete_input = 1;
4809 }
4810
4811 if (optind != argc - 1)
4812 had_errors++;
4813
4814 if (verbose || had_errors)
4815 {
4816 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4817 #ifdef TARGET_VERSION
4818 TARGET_VERSION;
4819 #endif
4820 fputc ('\n', stderr);
4821 }
4822
4823 if (object_name == (char *) 0 || had_errors)
4824 {
4825 fprintf (stderr, _("Calling Sequence:\n"));
4826 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4827 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4828 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4829 fprintf (stderr, "\n");
4830 fprintf (stderr, _("Debug levels are:\n"));
4831 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4832 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4833 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4834 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4835 return 1;
4836 }
4837
4838 if (obj_in_name == (char *) 0)
4839 obj_in_name = object_name;
4840
4841 if (rename_output && rename (object_name, obj_in_name) != 0)
4842 {
4843 char *buffer = (char *) allocate_multiple_pages (4);
4844 int len;
4845 int len2;
4846 int in_fd;
4847 int out_fd;
4848
4849 /* Rename failed, copy input file */
4850 in_fd = open (object_name, O_RDONLY, 0666);
4851 if (in_fd < 0)
4852 pfatal_with_name (object_name);
4853
4854 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4855 if (out_fd < 0)
4856 pfatal_with_name (obj_in_name);
4857
4858 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4859 {
4860 len2 = write (out_fd, buffer, len);
4861 if (len2 < 0)
4862 pfatal_with_name (object_name);
4863
4864 if (len != len2)
4865 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4866 }
4867
4868 free_multiple_pages ((page_t *) buffer, 4);
4869
4870 if (len < 0)
4871 pfatal_with_name (object_name);
4872
4873 if (close (in_fd) < 0)
4874 pfatal_with_name (object_name);
4875
4876 if (close (out_fd) < 0)
4877 pfatal_with_name (obj_in_name);
4878 }
4879
4880 /* Must open input before output, since the output may be the same file, and
4881 we need to get the input handle before truncating it. */
4882 obj_in_stream = fopen (obj_in_name, "r");
4883 if (obj_in_stream == (FILE *) 0)
4884 pfatal_with_name (obj_in_name);
4885
4886 if (delete_input && unlink (obj_in_name) != 0)
4887 pfatal_with_name (obj_in_name);
4888
4889 object_stream = fopen (object_name, "w");
4890 if (object_stream == (FILE *) 0)
4891 pfatal_with_name (object_name);
4892
4893 if (strcmp (argv[optind], "-") != 0)
4894 {
4895 input_name = argv[optind];
4896 if (freopen (argv[optind], "r", stdin) != stdin)
4897 pfatal_with_name (argv[optind]);
4898 }
4899
4900 copy_object (); /* scan & copy object file */
4901 parse_input (); /* scan all of input */
4902
4903 update_headers (); /* write out tfile */
4904 write_object ();
4905
4906 if (debug)
4907 {
4908 fprintf (stderr, "\n\tAllocation summary:\n\n");
4909 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4910 if (alloc_counts[i].total_alloc)
4911 {
4912 fprintf (stderr,
4913 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4914 alloc_counts[i].alloc_name,
4915 alloc_counts[i].total_alloc,
4916 alloc_counts[i].total_free,
4917 alloc_counts[i].total_pages);
4918 }
4919 }
4920
4921 return (had_errors) ? 1 : 0;
4922 }
4923
4924 \f
4925 /* Catch a signal and exit without dumping core. */
4926
4927 STATIC void
4928 catch_signal (int signum)
4929 {
4930 (void) signal (signum, SIG_DFL); /* just in case... */
4931 fatal ("%s", strsignal (signum));
4932 }
4933
4934 /* Print a fatal error message. NAME is the text.
4935 Also include a system error message based on `errno'. */
4936
4937 void
4938 pfatal_with_name (const char *msg)
4939 {
4940 int save_errno = errno; /* just in case.... */
4941 if (line_number > 0)
4942 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4943 else
4944 fprintf (stderr, "%s:", progname);
4945
4946 errno = save_errno;
4947 if (errno == 0)
4948 fprintf (stderr, "[errno = 0] %s\n", msg);
4949 else
4950 perror (msg);
4951
4952 exit (1);
4953 }
4954
4955 \f
4956 /* Procedure to die with an out of bounds error message. It has
4957 type int, so it can be used with an ?: expression within the
4958 ORIG_xxx macros, but the function never returns. */
4959
4960 static int
4961 out_of_bounds (symint_t indx, /* index that is out of bounds */
4962 symint_t max, /* maximum index */
4963 const char *str, /* string to print out */
4964 int prog_line) /* line number within mips-tfile.c */
4965 {
4966 if (indx < max) /* just in case */
4967 return 0;
4968
4969 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4970 progname, input_name, line_number, indx, str, max, prog_line);
4971
4972 exit (1);
4973 return 0; /* turn off warning messages */
4974 }
4975
4976 \f
4977 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4978 like sbrk's behind its back (or sbrk isn't available). If we use
4979 sbrk, we assume it gives us zeroed pages. */
4980
4981 #ifndef MALLOC_CHECK
4982 #ifdef USE_MALLOC
4983
4984 STATIC page_t *
4985 allocate_cluster (Size_t npages)
4986 {
4987 page_t *value = xcalloc (npages, PAGE_USIZE);
4988
4989 if (debug > 3)
4990 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4991
4992 return value;
4993 }
4994
4995 #else /* USE_MALLOC */
4996
4997 STATIC page_t *
4998 allocate_cluster (Size_t npages)
4999 {
5000 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5001 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5002
5003 if (offset != 0) /* align to a page boundary */
5004 {
5005 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5006 pfatal_with_name ("allocate_cluster");
5007
5008 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5009 }
5010
5011 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5012 pfatal_with_name ("allocate_cluster");
5013
5014 if (debug > 3)
5015 fprintf (stderr, "\talloc\tnpages = %lu, value = " HOST_PTR_PRINTF "\n",
5016 (unsigned long) npages, (void *) ptr);
5017
5018 return ptr;
5019 }
5020
5021 #endif /* USE_MALLOC */
5022
5023
5024 static page_t *cluster_ptr = NULL;
5025 static unsigned pages_left = 0;
5026
5027 #endif /* MALLOC_CHECK */
5028
5029
5030 /* Allocate some pages (which is initialized to 0). */
5031
5032 STATIC page_t *
5033 allocate_multiple_pages (Size_t npages)
5034 {
5035 #ifndef MALLOC_CHECK
5036 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5037 {
5038 pages_left = MAX_CLUSTER_PAGES;
5039 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5040 }
5041
5042 if (npages <= pages_left)
5043 {
5044 page_t *ptr = cluster_ptr;
5045 cluster_ptr += npages;
5046 pages_left -= npages;
5047 return ptr;
5048 }
5049
5050 return allocate_cluster (npages);
5051
5052 #else /* MALLOC_CHECK */
5053 return xcalloc (npages, PAGE_SIZE);
5054
5055 #endif /* MALLOC_CHECK */
5056 }
5057
5058
5059 /* Release some pages. */
5060
5061 STATIC void
5062 free_multiple_pages (page_t *page_ptr, Size_t npages)
5063 {
5064 #ifndef MALLOC_CHECK
5065 if (pages_left == 0)
5066 {
5067 cluster_ptr = page_ptr;
5068 pages_left = npages;
5069 }
5070
5071 else if ((page_ptr + npages) == cluster_ptr)
5072 {
5073 cluster_ptr -= npages;
5074 pages_left += npages;
5075 }
5076
5077 /* otherwise the page is not freed. If more than call is
5078 done, we probably should worry about it, but at present,
5079 the free pages is done right after an allocate. */
5080
5081 #else /* MALLOC_CHECK */
5082 free (page_ptr);
5083
5084 #endif /* MALLOC_CHECK */
5085 }
5086
5087
5088 /* Allocate one page (which is initialized to 0). */
5089
5090 STATIC page_t *
5091 allocate_page (void)
5092 {
5093 #ifndef MALLOC_CHECK
5094 if (pages_left == 0)
5095 {
5096 pages_left = MAX_CLUSTER_PAGES;
5097 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5098 }
5099
5100 pages_left--;
5101 return cluster_ptr++;
5102
5103 #else /* MALLOC_CHECK */
5104 return xcalloc (1, PAGE_SIZE);
5105
5106 #endif /* MALLOC_CHECK */
5107 }
5108
5109 \f
5110 /* Allocate scoping information. */
5111
5112 STATIC scope_t *
5113 allocate_scope (void)
5114 {
5115 scope_t *ptr;
5116 static scope_t initial_scope;
5117
5118 #ifndef MALLOC_CHECK
5119 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5120 if (ptr != (scope_t *) 0)
5121 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5122
5123 else
5124 {
5125 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5126 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5127
5128 if (unallocated == 0)
5129 {
5130 unallocated = PAGE_SIZE / sizeof (scope_t);
5131 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5132 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5133 }
5134
5135 ptr = &cur_page->scope[ --unallocated ];
5136 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5137 }
5138
5139 #else
5140 ptr = xmalloc (sizeof (scope_t));
5141
5142 #endif
5143
5144 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5145 *ptr = initial_scope;
5146 return ptr;
5147 }
5148
5149 /* Free scoping information. */
5150
5151 STATIC void
5152 free_scope (scope_t *ptr)
5153 {
5154 alloc_counts[ (int) alloc_type_scope ].total_free++;
5155
5156 #ifndef MALLOC_CHECK
5157 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5158 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5159
5160 #else
5161 free (ptr);
5162 #endif
5163
5164 }
5165
5166 \f
5167 /* Allocate links for pages in a virtual array. */
5168
5169 STATIC vlinks_t *
5170 allocate_vlinks (void)
5171 {
5172 vlinks_t *ptr;
5173 static vlinks_t initial_vlinks;
5174
5175 #ifndef MALLOC_CHECK
5176 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5177 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5178
5179 if (unallocated == 0)
5180 {
5181 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5182 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5183 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5184 }
5185
5186 ptr = &cur_page->vlinks[ --unallocated ];
5187 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5188
5189 #else
5190 ptr = xmalloc (sizeof (vlinks_t));
5191
5192 #endif
5193
5194 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5195 *ptr = initial_vlinks;
5196 return ptr;
5197 }
5198
5199 \f
5200 /* Allocate string hash buckets. */
5201
5202 STATIC shash_t *
5203 allocate_shash (void)
5204 {
5205 shash_t *ptr;
5206 static shash_t initial_shash;
5207
5208 #ifndef MALLOC_CHECK
5209 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5210 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5211
5212 if (unallocated == 0)
5213 {
5214 unallocated = PAGE_SIZE / sizeof (shash_t);
5215 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5216 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5217 }
5218
5219 ptr = &cur_page->shash[ --unallocated ];
5220 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5221
5222 #else
5223 ptr = xmalloc (sizeof (shash_t));
5224
5225 #endif
5226
5227 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5228 *ptr = initial_shash;
5229 return ptr;
5230 }
5231
5232 \f
5233 /* Allocate type hash buckets. */
5234
5235 STATIC thash_t *
5236 allocate_thash (void)
5237 {
5238 thash_t *ptr;
5239 static thash_t initial_thash;
5240
5241 #ifndef MALLOC_CHECK
5242 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5243 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5244
5245 if (unallocated == 0)
5246 {
5247 unallocated = PAGE_SIZE / sizeof (thash_t);
5248 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5249 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5250 }
5251
5252 ptr = &cur_page->thash[ --unallocated ];
5253 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5254
5255 #else
5256 ptr = xmalloc (sizeof (thash_t));
5257
5258 #endif
5259
5260 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5261 *ptr = initial_thash;
5262 return ptr;
5263 }
5264
5265 \f
5266 /* Allocate structure, union, or enum tag information. */
5267
5268 STATIC tag_t *
5269 allocate_tag (void)
5270 {
5271 tag_t *ptr;
5272 static tag_t initial_tag;
5273
5274 #ifndef MALLOC_CHECK
5275 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5276 if (ptr != (tag_t *) 0)
5277 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5278
5279 else
5280 {
5281 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5282 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5283
5284 if (unallocated == 0)
5285 {
5286 unallocated = PAGE_SIZE / sizeof (tag_t);
5287 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5288 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5289 }
5290
5291 ptr = &cur_page->tag[ --unallocated ];
5292 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5293 }
5294
5295 #else
5296 ptr = xmalloc (sizeof (tag_t));
5297
5298 #endif
5299
5300 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5301 *ptr = initial_tag;
5302 return ptr;
5303 }
5304
5305 /* Free scoping information. */
5306
5307 STATIC void
5308 free_tag (tag_t *ptr)
5309 {
5310 alloc_counts[ (int) alloc_type_tag ].total_free++;
5311
5312 #ifndef MALLOC_CHECK
5313 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5314 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5315
5316 #else
5317 free (ptr);
5318 #endif
5319
5320 }
5321
5322 \f
5323 /* Allocate forward reference to a yet unknown tag. */
5324
5325 STATIC forward_t *
5326 allocate_forward (void)
5327 {
5328 forward_t *ptr;
5329 static forward_t initial_forward;
5330
5331 #ifndef MALLOC_CHECK
5332 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5333 if (ptr != (forward_t *) 0)
5334 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5335
5336 else
5337 {
5338 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5339 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5340
5341 if (unallocated == 0)
5342 {
5343 unallocated = PAGE_SIZE / sizeof (forward_t);
5344 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5345 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5346 }
5347
5348 ptr = &cur_page->forward[ --unallocated ];
5349 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5350 }
5351
5352 #else
5353 ptr = xmalloc (sizeof (forward_t));
5354
5355 #endif
5356
5357 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5358 *ptr = initial_forward;
5359 return ptr;
5360 }
5361
5362 /* Free scoping information. */
5363
5364 STATIC void
5365 free_forward (forward_t *ptr)
5366 {
5367 alloc_counts[ (int) alloc_type_forward ].total_free++;
5368
5369 #ifndef MALLOC_CHECK
5370 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5371 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5372
5373 #else
5374 free (ptr);
5375 #endif
5376
5377 }
5378
5379 \f
5380 /* Allocate head of type hash list. */
5381
5382 STATIC thead_t *
5383 allocate_thead (void)
5384 {
5385 thead_t *ptr;
5386 static thead_t initial_thead;
5387
5388 #ifndef MALLOC_CHECK
5389 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5390 if (ptr != (thead_t *) 0)
5391 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5392
5393 else
5394 {
5395 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5396 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5397
5398 if (unallocated == 0)
5399 {
5400 unallocated = PAGE_SIZE / sizeof (thead_t);
5401 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5402 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5403 }
5404
5405 ptr = &cur_page->thead[ --unallocated ];
5406 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5407 }
5408
5409 #else
5410 ptr = xmalloc (sizeof (thead_t));
5411
5412 #endif
5413
5414 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5415 *ptr = initial_thead;
5416 return ptr;
5417 }
5418
5419 /* Free scoping information. */
5420
5421 STATIC void
5422 free_thead (thead_t *ptr)
5423 {
5424 alloc_counts[ (int) alloc_type_thead ].total_free++;
5425
5426 #ifndef MALLOC_CHECK
5427 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5428 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5429
5430 #else
5431 free (ptr);
5432 #endif
5433
5434 }
5435
5436 #endif /* MIPS_DEBUGGING_INFO */
5437
5438 \f
5439 /* Output an error message and exit. */
5440
5441 void
5442 fatal (const char *format, ...)
5443 {
5444 va_list ap;
5445
5446 va_start (ap, format);
5447
5448 if (line_number > 0)
5449 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5450 else
5451 fprintf (stderr, "%s:", progname);
5452
5453 vfprintf (stderr, format, ap);
5454 va_end (ap);
5455 fprintf (stderr, "\n");
5456 if (line_number > 0)
5457 fprintf (stderr, "line:\t%s\n", cur_line_start);
5458
5459 saber_stop ();
5460 exit (1);
5461 }
5462
5463 void
5464 error (const char *format, ...)
5465 {
5466 va_list ap;
5467
5468 va_start (ap, format);
5469
5470 if (line_number > 0)
5471 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5472 else
5473 fprintf (stderr, "%s:", progname);
5474
5475 vfprintf (stderr, format, ap);
5476 fprintf (stderr, "\n");
5477 if (line_number > 0)
5478 fprintf (stderr, "line:\t%s\n", cur_line_start);
5479
5480 had_errors++;
5481 va_end (ap);
5482
5483 saber_stop ();
5484 }
5485
5486 /* More 'friendly' abort that prints the line and file. */
5487
5488 void
5489 fancy_abort (const char *file, int line, const char *func)
5490 {
5491 fatal ("abort in %s, at %s:%d", func, file, line);
5492 }
5493 \f
5494
5495 /* When `malloc.c' is compiled with `rcheck' defined,
5496 it calls this function to report clobberage. */
5497
5498 void
5499 botch (const char *s)
5500 {
5501 fatal ("%s", s);
5502 }
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